Mda…
You are going to setup serious programs at your home computers to run applications like GK. I think, that isn’t correct way to success. Setuping _freeware_ GK and his support is not simple task, as for me. You can find up many bugs and have “nice” time with this without any comfortable support from developers.
I think, that commercial products more comfortable. F.E. soft switch without full media proxy — looks like GK but works morte stable(of cource, if you chosen best developer).