Yes... any x16 GRFX Card inder PCI-e Intercfe would work fine with the board....
Yes the onboard ATi x1250 its 3.0 for Ratings under grfx an the chipset is fully vista certified !!
Motherboard can play any game

actually its not motherboard which is the part to consider the Game play... its Processors or Grfx card or onboard grfx to cosider the performance of the game...
for this question visit here and go through the last pages... *www.thinkdigit.com/forum/showthread.php?t=8996
if considering just the mobo performance then yes the chipset and mobo performes great under Vista or any apps... now if u are asking for onboard grfx its more than enough to run Vista under its full glory, but nvidia 6150 would be better than AMD 690G when comes to onbord game play...