Basically I only have 1 ENET port on my modem and I would like to split it so I can use my PC and my xbox 360 at the same time. I have a moderate level of computer knowledge, please help, thanks
Plug the cable from your modem into port 5 on this, then plug in your PC and 360 into Ports 1 and 2 and plug in power.
You plug your PC and Xbox into the router then it lets both stream through the internet connection. The router will have a port for the cable Modem to plug in. The router should be placed right next to the cable modem if its a wired router. I left the model i use below and at home two people can game while another is on neflix. We have 4 computers using this router. I dont know how or if the Xbox can use gigabit though. It may run at 10/100 which is also ok.
D-Link Systems D-Link DGL-4100 GamerLounge Broadband Gigabit
Wired is cheaper than wireless and will probably work right out of the box.