I'm looking at getting some form of computer to use for English essays and long pieces of writing. I want an Apple product, but I am on quite a tight budget. With the keyboard dock add-on, could the iPad fit the bill for English essays and the like? I would also use it as a browsing device for downstairs, but that's secondary to it's educational purpose for me. I've also been looking at the Powerbook G4, which is now similar to the iPad's price (second hand). Would that be better suited? Thanks in advance.