I will agree with snoopy. Ground Control with custom rates and Koni yellows is the perfect setup for street/track. It is a cheaper and more superior setup than your entry level coilovers.
If you really have to go with full coilovers, stay away from D2, Ksport, Buddy Club, Megan Racing. They are all the same thing with different paint. Go with a serious setup like Tein FLEX.