do you have your AVS sites setup as an entry page plus 2 or 3 galleries with 15-20 pics on each gallery? If yes then you already have 2 or 3 tgp galleries ready to go from every AVS site you have!

TGP is a big numbers game, the bigger the traffic the more sales you will get. And expect conversions to be a lot worse than your avs sales. But that being said, if you have bandwidth availabel, why not give it a go? Its just another way of making sales and if you can grab a few extra bucks out of it then I say go for it.

cheers,
Luke