Hey u guys i have read alot about computers but i dont understand about the overclocking and also i wud like to buy a new pc for gaming and plan to spend like around 3000 can on it im not rich but i intend to work hard cuz i want a good pc. what u guys think bout parts for t? i was thinking bout a geForce 7800 GT i think thats what i saw but i dont know what kind of processor i need and what kind of cooling sytem i need also. i saw an antec 600w psu i think thatll handle everything and i was thinking bout two hard drives and two sticks of ddr . whats this whole thing bout ddr3.? im new to this computer thing but it interests me alot and im jus about to enter college to start a computer tech and network supportcourse. thanks alot for you time and help.