I just got my powerbook today, and it comes with the retail version of tiger...it is already running tiger, but not from the retail disc. Should I go ahead and reinstall then update immediately? When I make the update, which should I go with? Most recent? I got the powerbook (my first Mac) off ebay and it is the 1.33ghz 15" model, no programs exist on the computer...it's only running OSX, Where should I begin? What programs should I be looking to get? Freeware, Shareware, retail (I am willing to spend the dough if it means I won't have any problems)? I'll be using the computer for DVD viewing, itunes, word processing, and Adobe CS2...possibly an SNES emulator so I can put all the megaman games on my laptop.