lol a 2700 would be fine. Ok, I'd say get a x2, but one a $200 that's probablt out of the question. So you need a cpu, a mobo, and ram... what's your total budget for all 3 parts?
also do you already have a gfx card? if do is it agp/pcie...
It help to pst what you have, and how much you have to upgrade, and what parts you want to upgrade. Then people can figure out the best price to performance ratio for your setup.
In The Mail!!!!- Athlon 64 3500 @Stock/Abit K9N SLi sAM2/2GB G.Skill DDR2 800 @Stock /XFX G7900GT XXX 520/1500Mhz/74GB Raptor w/ 16mbcache/300GB 16mbcache SATA HD/NEC DVD-RAM Burner/OCZ ModStream 520watt psu/ThermalTake Armor Jr./Logitech EX110 mouse/keyboard