Look at this treat at the RakNet Forum:
Here you go...

Rak'Kar has combined serveral free projects, Ogre 3D 1.2.2 Dagon (p1), fmod 4.04.20, ois 0.7.2, RakNet 3.0 (clear ) - Thats really a great pice of source.

And he points on some tools to use with the engine.