You can pick up Omni's or Nex for around 500-600, not bad. The Koni yellows are awsome too (lifetime warranty)! I'm saving up for some Nex's, going to try that route, [I]all by friends are cool and they have coilovers and I want to be cool too!
I have some Yokohama ES100's that are great in the summer time! Check tires.com, if you chew up tires, you can get good used tires from them with 90%tread for cheap!