Gpu miners exist, but most of the new coins you see today doesn't support mining with the JSON-RPC html protocol (getwork()) in the wallet. This meens that without a pool, you cannot use ccminer or sgminer to solo-mine. I linked 2 new coins and asked for pools, and it turned out that they had pools already.
Price of Nigt5, I'm Interested! I can not see in your list of private miners.