The Sound catalogue is now available at Ideal Copy. I highly recommend the album Shock Of Daylight + Heads & Hearts which includes their Mega Hit Total Recall. IMHO, every newwaver should own that song. The band may be underrated but they are very talented. The Sound albums have been reissued by Renascent but still fetch a relatively high price on ebay.
Talking about Renascent, they announce the release early 2006 of 4 Comsat Angels albums: Waiting For A Miracle, Sleep No More, Fiction and the BBC Sessions 1979-1984.