I'm going a summer program abroad at England to study for a couple months soon and I have a dilemma of which laptop to bring. I have an old 12" powerbook and a new mbp 2.2 i just bought for college in the fall. The mbp is obviously much faster with a bigger screen, etc, so it would be better for studying, but the powerbook is more portable. Obviously I bought the mbp to use it, but it is brand new so I'm a bit uncertain about traveling with it. Which should I bring?