The latest ventrilo still offers a free 8 person server. If you go through a router for your internet connection have fun! Took me nearly an entire day to figure it all out but once you find the info on ventrilo forums its pretty basic step by step.
I have a decent comp, not the best and use a router and downloaded/configured vent server myself. No problems whatsoever with quality or lag issues and I often run it with a few other programs going. So don't be discouraged to try it. And if you get stuck on something and need help let me know.. I have some experience with it. Good luck
