So, next biggest question: Do you 3d game? WoW or any newer 3d game? this is important because the graphics card, or lack there of comes into play...
I currently also run an AMD APU (A8-3650 3.5Ghz), and have 0 problems running 3 UO accts with a handful of scripts running WHILE watching Netflix, and having somewhere between 10-30 Chrome Tabs open. I do have 16gb of RAM which helps a bit, mostly just more tabs tabs open.
right now I have about 15 tabs open, and netflix and the three ultima accts running and am at ~60% CPU, and 4.5GB Memory used.
Back when I was playing WoW, netflix and Raids were a bit taxing, but if I closed my tabs, I was usually okay. Just to give you an idea.
So after answering the "I need a dedicated graphics card: yes/no" question, we move on to storage.
I am a huge proponent of RAID storage... RAID 1 or 10 to be exact. RAID 5 or 6 are fine too, but most don't want to spring for a RAID controller and 5+ HDDs/SSDs.
When I was in school a long time ago, I had a bar band (new age New Orleans Brass Band) and had a bunch (thousands of hours of work) of music that I had written/transcribed on my computer. That (really "those" as I was running RAID 0) HDD died, and I lost a lot of creative material... This time around, I went with 4 HDDs so I could run RAID 10 which I think is stripes of a mirror, but that's whatever.. my only real point is now again, having hours of self produced music, nd now hundreds of hours spent on writing scripts, I am VERY comforted by the fact that 2-3 HDDs must fail before I lose data. So, if you create on your computer, I definitely recomend a RAID 1 setup so your data is safe, if you don't then you might not care, and 1 HDD is probably enough.
Still on drive storage, if you only want one and the amount of storage isn't a priority, get an SSD. This may lead to the wife wanting one, too so take that into account.
I'll check back, later