AEBN got twink pay per view and tonnes of other gay vid content, easy sell cause you can offer them a freebie first.
Hunk Money - got vid galleries, downloadable content, flash etc... Nice one here. Lots of sites to play with.
Bucks Factory not as well known but some nice twink content here im sure they can send you more if you need it. can expect regular sales with this stuff.
Also you might want to try Belami, they are particular about how much content they give out but damn that content is gold! Really good stuff, awesome site will have your surfers drooling.
link for a peek and
belamicash.com to sign up quote 207317 if you want to add me as a ref ;-)