Just to save you a little money, and experimenting...

I only play PS2 games on my PS3 for the time being. I play Battlefield 2, etc. I wanted a PS3 so I could get a wireless bluetooth headset, mainly to play on Battlefield 2. Dissapointment sets in...

A wireless bluetooth headset will not work on PS2 games in the PS3.

PS3 is programmed for wireless bluetooth headsets to only work on PS3 games.

Same thing with wireless keyboards such as the Madcatz wireless mini keyboard that snaps on the controller. It wouldn't work on PS2 games in the PS3.