Amazon.com has a Netgear WG511 54Mbps Wireless PC Card for $39.99 after a $10 rebate with Free Shipping.
Also buy NETGEAR WGR614 54Mbps Wireless G Cable/DSL Router 
for $49.99 after a $20 rebate with Free Shipping. You will also qualify for an additional $10 rebate for combo purchase.