Well, for one thing, you'll never get the full 54Mbps rate. But here go some routers. BTW, all of these routers offer at least 108Mbps speeds and are under $100, and offer WPA-SPK as well as MAC address filtering: TRENDnet TEW-611BRP BELKIN F5D8230-4 BUFFALO WHR-HP-G54 ASUS WL-520g BUFFALO WHR-G54S Airnet AWR014G8 TRENDnet TEW-511BRP