I'm Marco from italy, (first of all sorry for my terrible english)
I've create a software for network rendering with maya and mentalRay (maya version)
you can see at
seb is free and some feature are:
1. rendering over network
2. job queue local and over network
3. single frame split on more computer (only maya render, but alpha testing full version)
4. user interface for all maya settings
5. render over network with mentalray for maya.
any comment will be appreciate !