TM or Cerv. How about making a sticky here so we can start listing some of the drops for scrolls, or items for imbuing and such. I can start it out.
Enchant Scroll, Nether Bolt Scroll, Healing Stone Scroll, Eagle Strike Scroll, Sleep scroll,....Skree
undead gargoyle:
myst scrolls: stone form, spell trigger, mass sleep, cleansing wounds, bombard
Void Orb ....Korpre, Anlorlem, Anlorvaglem, Betballem
Slith tongue....Slith
Spider Carapace, Bottle of Ichor....Trapdoor Spider
Toxic Venom Sac, Slith tongue.....Toxic Slith
Void Essence.....Anlorlem, Betballem
Essance of Passion....Hell Hound
This list that follows is a cut and paste from Stratics. I give full credit to Tina Small for compiling this list. I am just placing it here for peeps that don't want to bother going to stratics. 
Again, anything new I find I will keep updating.
Imbuing Ingredients  
These are the high-end ingredients needed to imbue certain properties at intensities of 91-100% and to imbue properties that have no intensity (i.e., Faster Casting, Mage Armor, Night Sight, Spell Channeling, Slayer Type, or Use Best Weapon Skill).
Abyssal Cloth - Cavern of the Discarded creatures (Abyss) - Mage Armor property 
Arcanic Rune Stone - Cavern of the Discarded creatures (Abyss) - Mage Weapon property 
Bottle of Ichor - Wolf Spider and Sentinel Spider (Underworld, Trapdoor Spiders (overland Ter Mur) - Night Sight property 
Boura Pelt - Boura (overland Ter Mur) - Cold Resist, Energy Resist, Fire Resist, Physical Resist, and Poison Resist properties 
Chaga Mushroom - Tomb of Kings - Luck property 
Crushed Glass - Cavern of the Discarded creatures (Abyss) - Enhance Potions property 
Crystal Shards - Cavern of the Discarded creatures (Abyss) - Damage Increase and Spell Damage Increase properties 
Crystalline Blackrock - Cavern of the Discarded creatures (Abyss) - Skill bonus property 
Daemon Claw - Fire Daemon (Abyss) - Demon slayer property 
Delicate Scales - Cavern of the Discarded creatures (Abyss) - Use Best Weapon Skill property 
Elven Fletching - Cavern of the Discarded creatures (Abyss) - Lower Requirements property 
Essence of Achievement - Imps and Mongbats (Abyss) - Faster Casting property 
Essence of Balance - Cavern of the Discarded creatures (Abyss), void creatures (overland Ter Mur) - Balanced property on bows 
Essence of Control - Enslaved goblins (Abyss) - Swing Speed Increase 
Essence of Diligence - Wyverns and Fairy Dragons (Abyss) - Faster Cast Recovery property 
Essence of Direction - Skeletal Lich and Rotting Corpses (Abyss) - Velocity property on bows 
Essence of Feeling - Pixies, wisps, dark wisps (Abyss) - Hit Magic Arrow property 
Essence of Order - Fire Ants (Abyss) - Lower Mana Cost property 
Essence of Passion - Lava Elemental (Abyss) - Hit Lightning property. 
Essence of Precision - Fiery Gargoyles and Efreet (Abyss) - Hit Chance Increase property 
Essence of Singularity - Green Acid Slugs (Underworld) - Defense Chance Increase property 
Faery Dust - Fairy Dragon, Pixies and Wisps (Abyss) - Lower Reagent Cost property 
Fire Ruby - Mining and quests - Hit Fireball and Strength Bonus properties 
Goblin Blood - Goblins (Underworld and Abyss) - Repond slayer property 
Lava Serpent Crust - Lava Elementals (Abyss) - Reptile slayer property 
Luminescent Fungi - Lumberjacking and quests - Hit Point Increase, Mana Increase, and Stamina Increase properties 
Parasitic Plant - Lumberjacking and quests - Hit Harm, Hit Lower Attack and Hit Lower Defense properties 
Powdered Iron - Cavern of the Discarded creatures (Abyss) - Durability property on shields 
Raptor Teeth - Raptors (overland Ter Mur) - Hit Cold Area, Hit Energy Area, Hit Fire Area, Hit Physical Area, and Hit Poison Area properties 
Reflective Wolf Eye - Clan Scratch Savage Wolf (Abyss) - Reflect Physical Damage property 
Seed of Renewal - Cavern of the Discarded creatures (Abyss) - Hit Point Regeneration, Mana Regeneration and Stamina Regeneration properties 
Silver Snake Skin - Silver Serpents in the Tomb of Kings, Abyss, Farmer Nash quest (Holy City in overland Ter Mur) - Spell Channeling property 
Slith Tongue - Slith (overland Ter Mur) - Hit Dispel property 
Spider Carapace - Navrey Night-Eyes (Underworld) and Trapdoor Spiders (overland Ter Mur) (not sure about Sentinel Spiders in the Underworld for this item) - Arachnid Slayer property 
Turquoise - Mining and quests - Intelligence Bonus property 
Undying Flesh - Undead Guardians and Nipporailem (Tomb of Kings) - Undead Slayer property 
Vial of Vitriol - Acid Slugs (Underworld) - Elemental Slayer property 
Void Orb - Void creatures (overland Ter Mur) - Hit Life Leech, Hit Mana Leech and Hit Stamina Leech properties 
White Pearl - Fishing - Any one of the "regular" slayer properties. 
Peerless Instance Keys
Draconic orb (lesser) - Fairy dragons (Abyss) - Keys to enter one of the Stygian Dragon peerless instances. 
Quest Items
These are items needed for quests that are new with the SA expansion.
Acid Sac - Acid slugs (Underworld) - Garamon's quest to enter the Abyss. 
Ancient Pottery Fragments - Creatures in the Abyss, Tomb of Kings, Underworld, overland Ter Mur - Axem's "A Broken Vase" quest. 
Dragon Blood - Reptilian creatures anywhere in the game once you have skinned them - Ortlem's "A Mystic's Journey" quest to receive the Crystal Ball of Knowledge. 
Daemon Bones - Void demons (overland Ter Mur) - Ortlem's "A Mystic's Journey" quest to receive the Crystal Ball of Knowledge. 
Lucky Coin - Corpses in the Underworld - Drop this in the Font of Fortune for a stat bonus or to receive an item. 
Tattered Remnants of an Ancient Scroll - Axem's "Putting the Pieces Together" quest. 
Untranslated Ancient Tome - Axem's "Ye Olde Gargish" quest. 
Red key, Blue Key, Yellow Key - Garamon's quest to enter the Abyss. 
Crafting Ingredients
Broken Crystals - Prism of Light (??) (Trammel and Felucca) (Do not know if these will also drop in the new SA lands.) - Used by alchemists to make Crystal Dust, an ingredient used by tinkers to make Gorgon Lenses used while doing the Medusa peerless. 
Medusa Blood - Medusa peerless (Abyss) - Used by alchemists to make Elixer of Rebirth, used by characters to rez their pets. 
Shimmering Crystals - Prism of Light (Trammel and Felucca) (Do not know if these will also drop in the new SA lands.) - Used by alchemists to make Crystal Granules, an ingredient used by alchemists to make soulstone fragments. 
Silver Serpent Venom - Silver Serpents in the Tomb of Kings, the Abyss, and overland Ter Mur - Used by alchemists and cooks to make Color Fixative, an ingredient required for making dye from decorative plant clippings. 
Toxic Venom Sac - Toxic Slith (overland Ter Mur) - Used by alchemists to make Scouring Toxin, an ingredient used by alchemists to make softened reeds from plant clippings. Tinkers use the softened reeds to make baskets. Players can also use Scouring Toxin to remove dye from dyed items. 
Void Essence - Void creatures (overland Ter Mur) - Used by tinkers to make Clockwork Scorpions, Leather Wolves, and Vollems 
Items With No Known Use
Boura Skin - Boura (overland Ter Mur) 
Congealed Slug Acid - Acid slugs (Underworld) 
Fairy Dragon Wing - Fairy Dragons (Abyss) 
Fey Wings - Fairy Dragons (Abyss) 
Fur - Boura (overland Ter Mur) 
Kepetch Wax - Kepetch Ambusher (overland Ter Mur) 
Lodestone - Cavern of the Discarded creatures (Abyss) 
Primeval Lich Dust - Primeval Lich (Abyss) 
Seared Fire Ant Goo - Fire ants (Abyss) 
Vile Tentacles - Maddening Horror (Abyss)