Keep watching slickdeals.... you should be able to get a smoking deal if you wait about 3 weeks or so. I will keep an eye out and PM you or update the thread for you as soon as I find something. My newest set of sony glasses are the rechargeable ones, they are a little lighter/better than the first gen glasses I have.
As far as the "ps3" ones, I dont have any experience with those yet, so I can not compare. But def look for the rechargeable glasses over the standard oldschool battery op glasses.
-eX