I absolutely love my PowerBook but need to upgrade so that I can run some windows programs. Getting a MBP isn't the most economical thing for me to do at the moment and my sights are somewhat set on a MB. I'm interested in hearing any experience/comments on going from a PowerBook (15") to a MB. It's more the physical aspects (keyboard, size, material, etc.) that I suppose I'm so attached to. Your comments would be appreciated!