Router help needed..

Hi,
i just got an ibook and i want to connet it wirelessly to my current internet connection. i know i need a router to do this, but im very unsure of which one and how to go about setting this up. Id like my desktop PC to connect to the router via ethernet or usb and the mac to use its airport thing to connect wirelessly. currently i have a USB modem that i use to connect to the net.
any advice on a suitible cheap router that would do the job easily, possibly with a nice firewall too?
thanks alot for any help!
Jonny
(btw - loving the ibook!)

Its all on preference, i recommend linksys though. i have used multiple of via wired and wifi with my pbook, and have had no problems with them.

Wireless-G Broadband Router V5.0 would work, its got wifi b/g and its got 4 lan ports. It also has WPA if you would like secure your network.