Your best option would be to visit the web sites of some of the laptop makers and see if any of them have a rebate offer or sale going on.
Toshiba , HP , Sony , Lenovo and Dell are some of the ones that you can look at and I would say Apple in that group but they are a little pricey but would be very good for your school work.
I have completely forgot about the student discounts that some manufacturers offer for new purchases. I will now have a much better plan when looking around the interwebs. Thanks for you response and enjoy the "Best Answer" award, you earned it.