As soon as apple releases an intel powerbook and it can be confirmed that windows can easily and more importantly powerfully be used within that sweet metal apple casing, my 15in 1.67 G4 will be on ebay.
I'm going to design school, but my focus is on architecture and while during my first year I've been able to get by with illustrator for my vector creation needs, I'm soon going to have to go full on autocad. For this reason I've been struggling with giving up my beloved powerbook, but if I can get apple and autocad on one notebook, I'll be in mobile computing, aluminum incased heaven.