pullies and cmdp's. it also depends on what you want to do with your car in the end. do you mind spending money on things you will have to take off in the end. you could do gears if you can find someone that can do the install for a good price. there's a guy around me that does them for a couple hundred and does it right with no noise coming from them after.
What are your current mods now and what are your goals for the car? Do you want a sound mod? A performance mod? A visually mod? Give us a little more to work with. Man I love refunds...not only from school, but as well as taxes