Okay, so I now have 5 Gb left on my MacBook Pro hard disk (boot camp and windows removed!) and it's showing in the performance sector. The virtual memory is shrinking to allow me more space and I'm being wary of saving stuff to the hard disk. I have the 80 Gb HD, and I've figured 120 probably isn't going to be enough for me either. Whats the biggest reliable (and not too expensive, I am a student) hard disk for laptops available which would work well in my MBP?