The Australian Company ist called "ANIMALLOGIC" to be found under www.animallogic.com
there are also converters for MAX and Softiamge. Isn't that cheap but very powerful. Supports all renderer working with RIB File-Format like Entropy, BMRT, AIR, and of course Pixars Renderman.
It's attached seamless into MAYA, like new Renderglobals, and a new renderbutton. The rest is done in the background, like converting textures aso. The main advantage is, that you can see, where the textures are placed. When you are working with RAT and SLIM, you can only attach the shaders to an object, but you can't see where. For simple projections you have to work with additional coordinate-systems generated from the RAT aso. It's more like Trial-and-Error. With MAYAMAN you can stay within MAYA to create shading networks, or you can import shaders generated with SLIM for Shaderman, or even "Handmade" shaders.
b u l l e t