I have a friend who's been using there 2007 MacBook Pro on a regular basis. However, the space limitations are starting to become a bit of a problem. That, and 5400 rpm is pretty slow. So the question is this: What HDD would you suggest going with? SSDs are too expensive at the moment, so they're not an option. We're not looking to spend too much money. I think 500GB should suffice. Even 320GB would be more than enough. On a side note, Mroogle isn't working.