D-Link DI-711 Broadband 802.11B Wireless Router $
 

D-link DI-711 @ Amazon.com

it is normally around $300 so it is a great deal.

Amazon's Description:

The D-Link DI-711 is a broadband IEEE 802.11b-compliant wireless gateway. The DI-711 provides two or more computers with the ability to share a DSL or cable modem through either its single local Ethernet port or its integrated wireless IEEE 802.11b component. The DI-711's integrated router and firewall provide NAT, DHCP, and packet-filtering services between the local network and the Internet.