It will not be a gaming computer, however I'm a heavy multi-tasker, so I want lots of speed and memory to give me the ability to have many, many programs and tasks running at the same time. I want room to grow this computer over years, both in case size and MOBO & CPU capabilities.
I also want a full tower case, because I don't like working in tight spaces and I need lots of cooling because, even with supplemental AC in my small office, the computers tend to run hot. So I'm thinking of using a HAF932 case (I like the look of the Corsair CC800DW better, but it's a lot more $$ - which I'd rather spend on stuff that matters more, and doesn't seem to have the cooling I need).
I'm planning to use an ASUS M4A89GTD PRO/USB3 AM3 AMD 890GX HDMI SATA 6Gb/s USB 3.0 ATX AMD Motherboard, with a Cooler Master GX Series 650W ATX 12V V2.31 80 PLUS power supply and at least 8GB RAM (Corsair Vengeance? Amazon's got a good price on it). I was thinking of using an AMD Black Edition AMD Phenom II X4 965 / 3.4 GHz CPU (with a Cooler Master Hyper 212 Plus 120mm Sleeve CPU Cooler on it), but it seems to be "out of stock" at several places and I've read some iffy reviews on it.