Just wondering what is the difference when buying a p4 1.6 gig , is there a difference 1.6 ,1.6A ?? Btw, It will be overclocked . Also what is a good "QUIET" CPU FAN FOR THIS CHIP AT 2.1 OR SO AND A QUIET P4 PSU ? I've gone deeeef from my current fans on my p 1g 1 80mm intake 2 faceing the hd's 1 exhaust+ psw fan and stock intel cpu fan buz buzz . I want a good not to expencive ocing fan if possible .cdn prices would be great since I am from Vancouver B.C. anyone know any good stores up here. THANKS.