I'm a PC gamer, i've spent thousands on my PC over the past years, enough to buy both a PS3 and Xbox360 a few times over.
Why am I supposedly going to go to the PS3?
I've purchased the Wii over the 360 and PS3 and i'm a PC fanboy - almost everything on 360 is coming to PC, the only thing that interests me that hasn't is Halo 3.
PS3 - MGS4
I don't think PC gamers will move to the PS3 honestly, if anything they will gravitate more to the Wii.