I was wondering, too, so here's what I've been able to scrounge up:

September 1st:

BRUCE BROUGHTON
Double Feature (promo)
The Lighter Side (promo)
Musical Drama (promo)
Sounds Exciting (promo)

September 7th:

DON DAVIS
Universal Soldier: The Return

JOHN FRIZZEL
Teaching Mrs. Tingle

BRUCE ROWLAND
Journey to the Center of the Earth

September 14th:

CHRIS YOUNG
In Too Deep

September 21st:

ERICH KORNGOLD
Juarez: A Tribute to Erich Korngold

ENNIO MORRICONE
The Fourth King
Phantom of the Opera
The Stendhal Syndrome

ALAN SILVESTRI
Back to the Future Trilogy (Cond. Debney) !!!!

MARK SNOW
Crazy in Alabama

Specific Date Unannounced:

ELIA CMIRAL
Stigmata (promo)

Davis' score to Universal Soldier made it out last Tuesday

September 7 is also scheduled to be the release date for the 1999 Thomas Crown Affair

Scooby-Doo and the Witch's Ghost comes out September 14

Buffy the Vampire Slayer song cd comes out October 19.