Yes, actually, I think you are.
BookWorm: I doubt any of the options you listed would suit today's basic computer needs. I would suggest buying a PowerBook G3 "Pismo." This model will support the newer Mac OS X, allowing you to more easily connect to printers, networks, browse online, etc. Not to mention it will run quite a bit faster. I would NOT suggest buying a PowerBook G4 though. Those run for around $500, and by the time you hit that price, it's worth it just to buy a brand new mac.