The load balanced systems I have worked on (generally web servers) are balanced and the incomming router. IIRC Cisco makes a load balancer among others. Load balancing only really applies to incomming connections. My understanding is that you are trying to set up a bunch of machines to crunch on a distributed computing problem. In this case, folding@home. That is much easier to do. Look at either getting a hardware firewall/router/masquerade or setting up linux on a machine to do the same job.