Well Steve, when all you need are a board, RAM, CPU and video card, you've got tons of options. You could keep with the parts suggested here, exchange the HD 4850 for an HD 4890, and slap on a bangin' heatsink, and upgrade to some overclocker-friendly RAM. Then you could tweak the system and make it really fly. Or, you could opt for an Intel rig, possibly even a low-end Core i7 system if you like.