I have been playing with 3Delight for Maya. It appears to have a much better hypershade integration than liquid. 3Delight reads the shader network and builds a SL/RIB equivalent at render time. This saves having to write the texture mappings for the shaders by hand. I have found that the RIB files can be saved out and then dispatched via drqueue. It appears that use of the license is free for non-commerical use, which would be perfect for a mini render-farm at Uni.