I've been a PC user and I'm at college now with a desktop. I'm looking to switch over to Mac, and to a laptop, obviously for portability issues. I'm wondering though, I've heard lots of rumors about a new chip coming out called Santa Rosa. Could you guys shed some light on exactly when we should expect a new MBP with santa rosa/leopard to be released? Is it worth waiting for the santa rosa or should I just get the MBP C2D now? What are the advantages of santa rosa going to be? I definitely can wait, but obviously i'd like to get a mac sooner than later. thanks in advance.