Have you found anyone get that many years at said school? Most get 2 years and begin to see the machine show signs of stress, failing battery or worse. By year 3 they know the end is near if it didn't already.
Maybe you could accept just a few years and shop for laptops at your price point?
I'm going to college next fall (majoring in Computer Science) and I'm looking for a well rounded laptop to help me through at least the first four years. However, I'm confused as to what hardware I need in this laptop. I'm going to be using Visual Basic to program applications, no gaming, but I would also be using it for entertainment (music, web browsing, movies/viral vids occasionally) and I'm looking to spend between $500 and $700. Anybody got any ideas?