I'm buying a 15" powerbook in a couple of days. But, should I take the 129 vram option for gaming? I don't do 3d works, but I'm playing UT2004, C&C General, StarCraft, Neverwinter Night etc, but don't likely to run Doom III on it cause I've already got a PowerMac G5 at home. And, will 64mb and 128vram differs a lot by feeling? So, any advice is appreciated.