I'm not a Maya user (just that some bc user sent me well exported x files as he wanted to see if an x-->b3d anim conversion could be done in UU, and the results were good) but u may find the good ones here :
www.quest3d.com
go to "support" menu..."download updates" ...and in the resulting page, at the left menu, choose "tools and exporters"
All till Maya 5, I think.
Someone posted that Maya 6 one was in certain oficial Maya users mailing list. But dunno. Ask Raven at Db pro forums if can't really make it work for Maya 6.
www.quest3d.com
go to "support" menu..."download updates" ...and in the resulting page, at the left menu, choose "tools and exporters"
All till Maya 5, I think.
Someone posted that Maya 6 one was in certain oficial Maya users mailing list. But dunno. Ask Raven at Db pro forums if can't really make it work for Maya 6.