Acoustic Mat for Floor?

All, I am looking for a high quality material I could put down on my current TG flooring in my attic that will eventually be my theater floor. I have read for hours and days on end on the soundproofingcompany and any number of other sites. I am not going to pull up the existing floor to "properly" isolate it. I am just trying to find the best/most cost efficient way to deaden the floor. Yes I know about flanking. I am looking to put down some type of material, whether it be green glue, MLV or some type of acoustic mat and then float another layer of T&G OSB on top of that. Thoughts?

Thanks, I have not been to that site. I just emailed them to price out the acoustik mat.