So I am going to buy a new iBook... But I am having a hard time making my decision on what model to buy... I am going to get a 14" for sure... but what I really can't decide is if I should get a new iBook or a previous generation.... This iBook will be used mainly for e-mail & surfing at work... No heavy use, my Power Mac is for that. I know what options are important to me and what they mean in terms of performance with the exception of the L2 cache... what the hell does a L2 cache just exactly do? What type of applications will benifit the most from the new 512k L2 cache? For just e-mail & surfing is it worth the money to get a new generation iBook? Thanks!