I'm working on the first game that I actually will be able to finish and sell. And for my next one I want to be able to just buy some models. I had a few questions though. On GDnet marketplace, can you modify the models you buy as long as you credit the original creator? And also, I heard Turbosquid lets you modify models that you buy from them now. Can you modify models you buy from GDnet marketplace?

It depends on who you buy from. I think each seller has his own terms.

Other than turbosquid and here, where do people buy models from?