Check if your program requires you to have a stethoscope and a penlight (mine did).
I went through a lot of pens and highlighters with all of the reading and note-taking. Several different colors of highlighters can be helpful when you're reading - different colors can mean different things (e.g. yellow for informational; blue for definition, etc. - you'll come up with your own system)
If your professors post their lectures electronically and you choose to print them for class, invest in the higher-capacity print cartridges (or a home laser printer if you have the $).
If you're buying a laptop, Apple does offer a 10% student discount, or check their refurbished laptops - the Macbooks are a good starter laptop:
http://store.apple.com/1-800-MY-APPL...&nclm=C61AFE24
(the white Macbooks tend to get dirty around the keyboards - black is better for that)