Crayfish

Tools are looking nice:

"A future StarCraft II Marketplace service was announced today at BlizzCon. The Battle.net store, planned to be added to StarCraft II after the game's launch, will allow map makers to publish both free and "premium" maps. Premium maps will carry a fee, meaning mod and map makers can sell their content directly on Battle.net." http://www.shacknews.com/onearticle.x/60148