Right now im using my old gaming pc from -07 and i can barely play with more than 15 people on a server , its actually lagging REALLY bad... but i bought a new computer like 1 month ago and it got broken after a couple weeks becuase the power went out and the power supply said "boom" but im getting a new one soon!
Parts in my new gaming pc is:
Nivida GTX470 1280mb SOC
AMD phenom2 955 @ 4.2 ghz
ddr3 4gb 1600mhz corsair RAM
Corsair 550w
Corsair 64gb ssd harddrive with windows 7 64bit
samsung 1.5tb harddrive for pictures and movies , some games etc.
and my case is a wardrobe ! really quiet and i also did a ventilation hole into my wardrobe so the cpu-grapich card is runing good at a couple deegres
