This Belkin N+ ADSL Modem and router is fantastic, it has USB port, so you can attach flash drives, or usb external hard drives. Its at a great price and going by what else in on offer at the minute, is one of the best performers around, and believe me I've looked and tested! So if you want to move to wireless N, then this would be a great purchase.
I can confirm this has greater range than my linksys wag160, especially on G.
(Its super easy to set it up for running online gaming, a simple case of manually assigning xbox IP address, then adding that address into the belkins DMZ. )