http://www.altairmodels.com/ - ok site nothing special about it to me

www.modelbank.com - another ok site support is a bit slow and you can only sell models there, no materials, or textures,  no forum ect so on an so forth.

http://www.fallingpixel.com/products.html this site is meh i dont use it much even to look at models

http://acidevolved.forumcircle.com/portal.php- My game creation compatriots.  We're always recruting though we cant pay you unless we can sell games.  We are currently making a side scrolling ship shooter like G-Darious.  And after that who knows: live chat

 

This site is very good in itself incredible support speed and helpfulness a personal favorite it just needs more members and a talkative fourm group