D-Link DWL-G730AP Pocket Router - $25
In AP mode, the DWL-G730AP can be used to create a wireless network in a room where a single Ethernet port is provided. Now multiple wireless clients can connect to the network at the same time to share resources and files.
In Router mode, the DWL-G730AP can be used to share a single broadband Internet connection, such as in a hotel room. The internal DHCP server automatically assigns IP addresses to ensure everyone in the room can connect to the Internet. In addition, the DWL-G730AP supports VPN Pass-through and firewall features including Network Address Translation (NAT) and MAC filtering to protect your wireless network from malicious attacks.