I recently recieved a EVGA GeForce 4 Ti4600 video card and want to overclock it. The only problem is that i feel that the factory cooling system isn't really par. How would i go about upgrading the cooling system on this card? Is it any different then just slapping on a faster fan? Link to card: http://www.evga.com/products/moreinfo.asp?Part_Number=128-A4-NV83-S1 I also have a nother question. I'm overclocking my AMD 2000+ to 1.73ghz, although i'm unsure if i should change the VCore voltage to the cpu because of the higher speed?