Motherboard + Q6600 CPU - 350
4 x 1GB - 70 after MIR or 4 x 1GB - 60 after MIR Both are 800MHZ (don't think i should oc yet)
XFX GeForce 8600 GT XXX - 80 after MIR
PSU 500W - 80
w/ 13% tax (not taking into account the rebates) = 650 ~~
I can probably go even cheaper with the PSU
*Edit* looks like i might need to get a cpu fan too.