Bought my iBook to dabble. Ended up going crazy. Importing tons of video. Analog to digital video conversion. Huge iMovie projects. Tons of Garageband recording. Stuff I never thought I could do. Problem: I may be overwhelming my 1.2 G4 iBook. For instance my 14 GB iMovie projects beachball. My Garageband stutters with an overabundance of tracks. My 7,000 photo library doesn't scroll smoothly. I'd like to get into Logic, Reason, Final Cut Express and pro programs. My iBook has 512 memory. 60 HD. Do I need a different machine (say a PB), or would I be better served by amping up my iBook's memory, buying an external FW HD and investing otherwise? Two things I do adore about the iBook: battery life and Wifi range. Any advice would be appreciated esp by folks doing similar stuff. 512ke.