Well, of course it depends on what you call good music! And your fitness level, but here are some that tend to be not your "same ol' same ol'". Some of the older Firms have different music. Fit Prime and Metaboost, produced by the orginators of the Firm, have striking tunes and very bright sets as well. Cathe, Kari Anderson, Christie Taylor sometimes use arrangements of recognizable tunes, sometimes with vocals (especially Christie). Some of the cardio dance workouts have music that's somewhat in the style of whatever dance they are doing (for example, Latin). If you like Christian music, Donna Richardson's Sweating in the Spirit is really great, though it's a beginner level workout. Still, it's good for a change and for a "light" workout day. Richard Simmons is just now releasing new workout DVDs; the cardio is a full hour and has 80's hits, with vocals, I believe, and there is a 30 minute toning workout as well. I haven't seen these; I think he tries for a beginner/intermediate level that's easily modified into higher intensity if needed. He also has DiscoSweat, which I do have, and it's a lot of fun and you can get a good workout from it if you 'pump it up'.
There's lots out there! Try your local library. Also, some websites allow you to preview the workouts, which could give you a decent idea of the kind of music they have.
If you find anything you really enjoy, post here and let us know about it!