Personally I hate steam, avoid it whenever possible.
But, 3d vision users have a group, there used to be talk there what to buy and what not. Too bad the user interface is so retarded I can't get to that page, even though Im trying, I really do.
Anyway, its called "nvidia 3d vision gamers"
btw:
Valve's reaction to s3d:
http://www.computerandvideogames.com/article.php?id=257516
http://www.thatvideogameblog.com/2010/05/21/newell-graphics-solved-onlines-next/ 