Hello all,new to forum.I have a nforce4sli motherboard,amd 4000 2.4 ghz,.It has a geo force 6200 tc 128 mb ddr pin128 tc card in it.I would like to upgrade as high as possible a card.It also has 1 gig of ram set up in dual channel mode.going to boost that to.any help or advise will be appreciated. joey:-)