Right. Hard to find, but if you see **anything** by Global Communications, pick it up. The first album is the 'ear' album (reissued 3 times), 2nd is 'Remotion' (not reissued) and finally Pentamorous Metamorphosis. If you are into this stuff, these LPs are required.
Vangelis did a soundtrack for the movie 1492, it is on LP and so far is his best work. About the same time Mike Oldfield released his best work to date, 'Songs of Distant Earth', also on LP but like 1492, quite rare. But awesome. If you get into Vangelis, his other LPs are spotty, perhaps one of his best is called Soil Festivities. You want to get the British LP. Opera Sauvage is quite nice too.
There is a sizable amount of stuff that came out of Germany during the 1970s, loosely called 'Kraut Rock' of which Tangerine Dream is the tip of the iceberg. You may also enjoy Can, Ashra Temple, Klaus Schultz (stay away from his later stuff...), Neu (we issued one of Michal Rother's later albums on LP, if you are interested), Cluster...
And our LP, Thunderbolt Pagoda, has been getting good reviews, although its more of a space rock, like early Hawkwind. We did 360 copies and the cover is hand-screened. (myspace.com/thunderboltpagoda)