AnandTech’s article Apple’s MacBook Pro: Using it as a Mac and a PC is a great, in-depth review of MacBookPro as well as Apple BootCamp and Parallels Workstation software which allows you (not that you want it, but sometimes there is little choice) to run Windows on Mac.
The article also has pictures comparing PowerBook G4 and MacBookPro side-by-side.
I especially liked how Anand starts his article: “When I first started using a PowerBook G4 over a year ago it quickly turned into the best experience I’d ever had with a notebook.”.