Here's a budget secondary build I put together to use at my desk when I'm not on my notebook.
Take note of my awesome cable management! (I've since cleaned up the random white power wire for the cold cathode, and routed my 4 pin CPU line a bit better)
I don't actually game on this table, it's just where I built it. Never noticed how bad my cats scratched it up until I looked at these shots!
NZXT M59 case
AMD HD 6750
BIOSTAR mATX random 1155 mobo
8GB G.Skill DDR3 1333 Ripjaws
Refurbished 450GB 10k Velociraptor that I paid $45 for at microcenter
OCZ ModXtreme Pro 600w modular PSU
Random ASUS 24x DVD burner
Logisys cold cathodes
3x Kingwin 120mm LED fans, 2x NZXT 120mm fans provided with case