Yep, Tiesto is wonderful. Also check out some Peaktwins, they're really good. Search for "Nukleuz Trance Sessions" on iTunes, and all of those tracks are very good.
DJ SHADOW-Organ doner GOLDFRAPP-Train CASSIUS-Cassius 1999 CHEMICAL BROTHERS-Hey girl hey boy FAITH NO MORE-Epic JESPER DAHLBACK-Robot dance KEVIN SAUNDERSON-Rock to the beat MORCHEEBA-Part of the process