Using XP (ugh) the Macbook isnt that bad for a gamer. Not as good my PC but not so bad. So far I have put Max Payne 2, Sims 2, Sim City 3000, Fallout1/2, C&C Generals and HoMMII/III. The old school games (Fallouts, HoMM) run perfect, but they would on my old powerbook. Sims 2 runs at all specs at min, 1280x800, and all and all it runs pretty smoothly. I think I had some apps runing in the background which hurt but it only studders when there are more than 4 sims in the screen at once. I know for a fact that Sims 2 is a very Processor hungry game so the lack of a good graphic card doesnt hurt it as much. Doesnt look great since all the textures are low but still very playable. Max Payne 2 (best.action.game.ever) runs pretty well. Settings are mixed, some low, some high, other s medium and I haven't tried more than 1024x768 yet. It ran smoothly on the default settings and loaded also as fast as my gaming rig I'm so stoked to have it because well...Max Payne rules/ I'd love to try Half-Life 2, as the macbook meets the minimum specs but I dont have any more HDD space to install it on! The macbook seems to make a decent budget gaming system, just dont expect max settings on the heavy 3D games!