Hmm, I'd get the feeling that most HDTVs right now would already be able to display 3D, and all you'd need is the glasses...
Which by the way, I went to the cinema today to see Clash of the Titans, great experience with the 3D but the film was pretty mediocre, however, I bought a pair of glasses for 80p (Like $1.20ish) in order to watch it... I'd assume they would work with 3D gaming too o.O