How does the GT 120 card perform in games? I would really like to get the GT 130, but I'm $200 short. Is it worth saving up for/spending the extra $200 for the GT 130? Gaming-wise. I would mostly be playing games like GTA IV, Valve games (L4D, Half- Life 2, TF2, etc.) UT3, GRID, Trackmania, etc. I have an HD2600 XT right now in my mac pro, and it handles all these games fine. If the GT 120 performs comparable or slightly better than the HD 2600 XT, then I'm fine. Does anyone know if it does?