Poor man's gaming machine
Athlon II X4 630 Propus @2.8GHz ($99)
use a MSI 760GM-E51 motherboard+G.SKILL 4GB RAM Combo ($129)
PowerColor Radeon HD 5670 512MB ($89)
Arctic Silver 5 Thermal Compound ($10)
Antec Three Hundred+Antec NEO ECO 520C 520W Continuous Power ($100)
Total: $428 (needs a Optical drive and HDD, but you can use your current ones)
(for $80 extra you could get Phenom II X4 965 BE Deneb 3.4GHz, much better CPU)
Athlon II X4 630 Propus @2.8GHz ($99)
use a MSI 760GM-E51 motherboard+G.SKILL 4GB RAM Combo ($129)
PowerColor Radeon HD 5670 512MB ($89)
Arctic Silver 5 Thermal Compound ($10)
Antec Three Hundred+Antec NEO ECO 520C 520W Continuous Power ($100)
Total: $428 (needs a Optical drive and HDD, but you can use your current ones)
(for $80 extra you could get Phenom II X4 965 BE Deneb 3.4GHz, much better CPU)