I have to say that they are officially the BEST band in the history of.... erm... all the bands i have heard. So only a slightly biased view then.

Well i was wondering if anyone else has heard them, they have been around for quite a while (1985 i think and are still releasing albums now). They are however not very well known. You can download their music here:

Very cheap and legal (you can download any all music here) I find that it is the best place for downloads, and it lets you preview all songs before you downlaod them, Average price for an album is $1.

-THE M-

By saying 'they are not very well known' - then you're including every human capable of listening to them - and trust me, they're not all music connoisseurs. If you exclude the ignorant masses, they're about as popular as it gets.

Oh, if you get all "OMG James Labrie is a God," don't bother with his solo album, it sucked. OSI and Liquid Tension Experiment are more or less side projects of Dream Theater, and they're both pretty good.

If you want some help exploring the genre, try Symphony X (albums: The Divine Wings of Tragedy, V: The New Mythology Suite, The Oddysey), Ayreon, Fates Warning, Magnitude Nine, Sonata Arctica - there are tons of progressive metal bands out there. And if you like the genre, they're all pretty good.