Stereoscopic glasses generally don't work very well (at least for my eyes and videocard). I've gone thru about 3 different brands. $49 to $99. None of them were any good.
I had that purple chair at the bottom... the intensor feedback chair. Pretty sweet rumbling bass from the games you're playing. Sound seems to surround you. Extremely uncomfortable, after 30 minutes you've got to walk around.
edit-> just saw the price of the intensor chair

$199... what a rip off. It was $199 at Sams Club when the company was still in business. I've seen it online for $99 plus shipping.