Hi all, I convinced a friend of mine to switch (yes!). She's going to get a powerbook for college and her school has a good deal (as most do) on the stock 15" powerbook w/ 64mb vram. She's not a gamer so I would think the 64mb vram is fine, but I think I read somewhere that Tiger will require 64mb vram (I might be mistaken). So I'm wondering if maybe the 128mb option would be a better choice for longevity, in case Apple releases an OS upgrade 2 years down the road requiring 128mb vram to fully take advantage of it. Just wanted to see what you guys/girls think. I generally find people's advice/opinions on MacRumors really helpful. Thanks.