I'm a huge fan of Sovereign Grace Music. They've released a ton of CDs and keep coming out with more. Great music, amazing, bible-based lyrics...God-glorifying worship. They have a new CD called Psalms that will be released at the WorshipGod 08 Conference in August. Also, check out the NA Band's CD Looked Upon (this is the band that led worship at the New Attitude Conference my wife and I attended...amazing stuff).
A sneak preview showing the vocalists, including John Reilly from the band Reilly (one of my new favorite bands):