Autodesk has announced that Maya LT, the company's 3D animation and modeling tool for professional indie game development, will be coming to Steam soon. Initially it will be available on April 22 for $50 USD a month, with room for Steam sales.
Autodesk has been collaborating closely with Valve to ensure Maya LT is accessible to the Steam community and is even creating DoTA 2 specific training videos, documents and assets. You can check out the first asset they made for the community here. A team of Autodesk gamers will also be actively involved with the Steam community, answering technical questions and general development inquiries.