As above live is pretty straightforward.

Another option depending on how you use the net:

If you've got a laptop you can create a network bridge from the laptop to xbox (via a network cable) and use the wireless net connection via the laptop. Or if your PC is also wireless create a network bridge again, you could also buy a VGA cable for £5 - £15 and use the PC monitor if its in another location.

I use my laptop as a network bridge on the xbox upstairs, as my one downstairs is hardwired to the router.