Well I guess I can give a little opinion on the game servers and port forwarding. I have a slackware box running SSH as a small private wargame on my network. From what I understand you want 3 game servers on essentially one public IP. Well in your router configuration it will have advanced options, then there should be a tab for port forwarding. What port forwarding does is send all information coming to a certain port to a internal IP address. So say your IP address is...10.10.10.10 and your internal network IP for the game server is 192.168.1.100. In the port forwarding tab you open the range of ports for that certain game server...and then select the internal network IP address you want it to be sent to. Then just do the same thing with the other game servers...the only thing you have to remember is that they all cannot be ran on the same ports, so all 3 game servers need to use different ports(which isn't a problem nowadays because most games let you select a wide range of ports to use).