used to be a big fan of trance, seen Tiesto live twice a couple of years ago, he and trance has really gone down hill though. Look for the classics, In Search of Sunrise, Magik 3 and 7, Paul Oakenfolds Tranceport, Armin van Buurens original A State of Trance (From 1998)
if you want to get a hold of the greatest electronica CDs ever made i would highly recommend Sasha and Digweeds Northern Exposure
Amazon.com: Northern Exposure II: East Coast: Sasha & John Digweed: Music
at the moment Joris Voorn is my favorite DJ, the guy is incredible.