Where do you go that provides all of your textbooks? Damn!
---
I'd suggest that you do what Sk1ny did and buy your textbooks second hand, never new. I bought new copies of all of the books I needed in my first semester and it cost me about ~$700 for 4 textbooks... buying second hand the next semester I managed to score 3 books for about $250, all of which would have been ~$600+ new.
Unless of course I'm misunderstanding you and you already bought books secondhand and still came to $700, in which case, sucks to be you.
EDIT: Oh, and don't forget that you can re-sell the ones you don't want to further reduce the overall cost, and to make you feel like you've just been given free money when you sell them a year later.