I am eager to buy either an iBook or PowerBook, but am leaning towards the PowerBook only because of the L2 cache and maybe the GPU. I will be getting the low end 12" Combo Drive PB or the high end 14" 1Ghz iBook. Does anyone know how much difference the doubled L2 cache makes in real world testing? I am a student, so I wanted a rugged 'book as I use my bicycle to get around-thats another reason I'm leaning towards the ibook. The powerbook also gets too hot for my liking and I like the bigger battery in the 14" iBook. If anyone knows anything that may help me make my decision, please post your knowledge.