If you want a router today,buy this one from PC World http://www.pcworld.co.uk/martprd/sto...&show_all=true

Just plug your modem into the WAN port, PC into port 1 and Xbox into port 2. You can pick up Forza motorsport 2 for about £15 now, its a proper racer where you cant corner at 100mph+ on grass and sand and you certainly cant bounce the car round the corner like on GT series.