I've been interested in picking up a PowerBook G4 12" 1.5GHZ. What are your experiences with these? I currently use an iMac G4 17" (800MHZ) and my MacBook Pro 15" (2.16GHZ). How does the PowerBook compare to these? I wanna get something inexpensive that is very portable. My MacBook Pro serves as my main computer so I dont like having to disconnect it from everything anytime i want to leave the house. I do a bit of graphic design, mainly LightRoom and Photoshop. Also music, Pro Tools and Logic Pro. Would those apps run well on the PowerBook?