Here's a copy of Armin's latest » State of Trance intro (40-sec, 192-kbps mp3, 1-MB). Cool way to launch a set.
Armin is worldwide. Every time I listen, seems like he's electrifying a different city (currently Sydney).
Good jammin' music. Pop in the ear-buds and get down to business. Armin takes you there with energy. Hails from Holland.
For more along these lines, here's a Google search preconfigured for the query » armin van buuren state of trance