The Lord of the Rings soundtrack is excellent. Also Casino Royale and Quantum of Solace by David Arnold. And the soundtrack to Star Trek The Motion Picture (first movie) by Jerry Goldsmith with the awesome Blaster Beam on several tracks. There's some wonderful deep bass in some of the tracks, notably The Cloud and V'ger Flyover.
Shpongle sounds great! Several times listening to that I had to yank off the phones because I swore I heard something in the house. But no, it was all coming through the phones.
Also heard a live Pink Floyd concert on an old Brain Damage podcast (don't know which one for sure) that created the space and soundstage so realistically that it sounded like I was in the audience.
But really, anything you like that's well recorded and produced shows its stuff on the T1s. They really seem to shine in any genre.