Lessee....I scrolled through the list (and I looked at laserdiscs for myself.....ebay....hehehe):

Time Bandits -not really obscure, but a good film nonetheless.

Brazil - definitely classic must-have (gee, I'm 2 for 2 on the terry gilliam films...haha)

Yojimbo - a fine Kurosawa film (hell, any of his films are worth having)

The Vanishing - this french version is MUCH better (it's the original) than the bastardized US clone film starring keifer sutherland and jeff bridges

I know I didn't throw out too many foreign films, but I haven't bolstered that part of my collection yet.