Thanks to Anime News Network and Anime on DVD for the info
Mar 18 Colorful
Mar 25 Genesis Climber Mospeada: Complete(MSRP $99.98)

Apr 01 Dai-Guard 5
Apr 01 Devil Lady 3
Apr 08 City Hunter 3: .357 Magnum
Apr 08 Rune Soldier 1
Apr 08 Excel Saga 6
Apr 08 Chance Pop Session 3
Apr 15 Street Fighter 1
Apr 15 Noir 2
Apr 15 Neoranga 2
Apr 22 The Samurai
Apr 29 Saiyuki TV 1
Apr 29 Saiyuki TV 1 (w/ box & shirt)
Apr 29 Wild Arms 3

May 06 You're Under Arrest
May 06 Crying Freeman 2
May 06 Zone of the Enders TV 4
May 06 Medabots 9
May 06 RahXephon 2
May 13 Devil Lady 4
May 13 Mazinkaiser 1
May 13 Ushio & Tora 1: Complete Collection
May 13 Casshan 1: Robot Hunter
May 13 Noir 3
May 20 Goemon 1: Legend of Mystical Ninja
May 20 Goemon 1: Legend of Mystical Ninja (w/ box)
May 20 Samurai X: Trust & Betrayal Director's Cut
May 20 Southern Cross(MSRP $99.98)
May 25 Samurai X: Reflection
May 27 Sakura Wars TV 1
May 27 Dai-Guard 6
May 27 Neoranga 3

Jun 03 Eden's Bowy
Jun 03 Eden's Bowy (w/box)
Jun 03 City Hunter 4: Bay City Wars & Million
Jun 03 Spectral Force
Jun 08 Rune Soldier 2
Jun 10 Voices Of Distant Star 1: Complete(Hoshi no Koe MSRP 19.99?)
Jun 10 Full Metal Panic! 1
Jun 10 Saiyuki 2
Jun 17 Steam Detectives 1
Jun 17 Crying Freeman 3
Jun 17 RahXephon 3
Jun 24 Super Gals 1
Jun 24 Casshan 2: Robot Hunter
Jun 24 Noir 4
Jun 24 Devil Lady 5
Jun 24 MazinKaiser 2
Looks like its going to be a huge first half for ADV Films

Please note, I've listed the MSRP for a couple of titles, but the 'Voices Of Distant Star' price isn't definate, but give that it's only 30 minutes and ADV tends to give lower prices to such short titles(see Miyuki-chan in wonderland), it's pretty much a given).

Also, in case you're wondering ADV's 'Street Fighter' release is for the DiC-produced US version that appeared on USA several years ago and not the anime series that Manga(boo! hiss!) owns.