CCL: Free Tool for conformer generation

["Raphael A. Bauer" <raphael.bauer**charite.de>]

 Sent to CCL by: "Raphael A. Bauer" [raphael.bauer,charite.de]
 Hi CC List,
I am wondering if anybody of you knows a tool for the generation of
 conformers. Pretty much what Catalyst does. But - for my project I
 would
 need something "free" (open source) and scriptable (command
 line version
 maybe).
 Any recommendations for good tools?
 Many thanks in advance!
 Raphael