If your ISP (internet service provider) is cable connection, choose the router "WGT624Version 3"
Wireless Super-G Firewall Router. Cost is $69.99
or WGR614 Wireless G-router. cost is $49.99
The WGT624 router supports WPA in Pre-Shared Key Mode (PSK).
If the ISP is ADSL,
here is amodel number DG834G.the price is $149.99
Hope this helps you :-)