Just gotten 3D vision I am also hungry for a GTX 580 mainly. I just reinstalled XP and run all stock except for the Realair Spitfire XIV and still have to make quite some sacrifices on my 3,6 gig Core 2 Duo/8800 GTX system. Hope a jump from 8800 GTX will help some even the bigger jump will be for other games? I have the option of going with that and use my MCW80 waterblock which miracurously is compatible with the 5 series or skip it entirely. Now this waterblock doesn´t cool the memory does it run hot and need active cooling? My 8800 GTX have done quite well without cooling on them. Of course don´t get any stellar overclock results but they do 1080 on my 8800 GTX stable. Over that you are pushing your luck depending on game.I am hoping the GTX 580 will have sufficient performance I will seldom be inclined to overclock it for my 1920x1080 stereo3D gamingAnother option is the 460 series in SLI for example which generally perform a bit better and is a bit cheaper. But only 1 gig of video RAM may be a bit little when you run 2x1920x1080 resolutions? the Radeons do benefit in several tests by having 2 gig over 1,5 of the nvidias equivalents. Also afraid of the noise levels of the 460/480 series)except for my 850 silverstone Zeus maybe stressed by it in conjunction to my overclocked CPU, memory and all my harddrives. Most of my research points to the 580 being the most painfree upgrade unless I need to find some special cooling solution for the memory modules.