I used to own a G3 iBook but I upgraded to a 12" PowerBook just over a year ago. The big difference for me between the two machine apart from performance was the build qualify. Everything feels so much better on the PowerBook, especially the track pad and mouse button. I may be getting a MacBook and I doubt that I will be able to have a feel and a play before I buy so my question is, especially to anyone who has updated from a PowerBook to MacBook: What is the quatlity like? Does the mouse have that definitive 'click' that the PowerBook had or is it more of a prod that the iBook had? Thanks.