Just ordered a new vid card,( a 7600gt xfx ). Problem is i have Gateway 702ge computer, it only has a 300 watt power supply.Been told i should be ok with what i have. Im thinking of upgrading PS anyways.ITs a BTX case(comp only 2yrs old). Here are the specs ( 3.2 ghz p4, dual layer dvd burner, 6600gt vid card pci express,onboard 5.1 sound, 200 gig Hd.) Most of the 7600gt cards ive looked at said a minimum of 350 to 400 watt recommended. I just need to know what kind of BTX case supply i woud need? Anyone with some good info help would be greatly appreciated!!!