Does anyone here know if the talk I've been hearing about GF4 Ti's needing a minimum of 300 watt's with the power supply is fact or if it is some peoples idea of problems with compatability on certain systems? I went to the Dell and Gateway websites and they offer the 4600 in their systems that are powered by 250 watt supplys. I was hoping to find some facts on this. Also no reviews ever mentioned it.