Asus WL-520gU Wireless Router for $39.99 with a $20 rebate. There is no shipping charge so your final price comes to $19.99 shipped. For those who love to tinker with things, this router is compatible with DD-WRT. Valid through 12/31.
This popular item went out of stock earlier. It is now back in stock at this time and may go out of stock again soon.