Even if you wipe the computer, all of the settings that are stored inside the router will remain untouched. This usually includes static IP addresses, DHCP settings, Broadband user/pass, port forwards etc etc.

The only thing I can recommend before you go ahead is to note down any static IP addresses before going on so you can replace them on the computer afterwards. Also note down which programs use what port if you have set up port forwarding rules.

If, you're just plug in and go, it should be a problem at all.

GMAC