Asus WL-700gE WiFi Router: Built-In 160GB Drive, iTunes, and Bittorrent
New router from Asus, it has a built in network iTunes client, so it'll show up as an iTunes client to your PCs. And it has a BitTorrent client that can rip down 7 streams automatically (and 10 FTP or web streams at the same time.) That's with your PC off, all downloads handled by the router.
It can act as a network storage device, UPnP/DLNA server for sharing music with compatible streaming devices, and can be turned into a RAID configuration with another drive, so you can have a backed up version of all your data. It can network USB printers, drives. Has 5 Ethernet ports. And encrypts in 64/128 bit WEP, WPA/WPA2 supports TKIP, AES, WPA, WPA2 and MAC.