Ogre55:
I am using a linksys befsx41 4 port plus wan ethernet roruter. Ive been using it for a couple of years now and just recently got a powerbook, thus needed a wireless solution.
My first thought was to replace the router with a linksys one equipped for cat5 and wireless. Then I thought about getting the airport extreme, but the price and lack of cat5 outputs was a turnoff.
My final answer was to retain the linksys router, as it is configured how I like and I dont really feel like reconfiguring a new one, and to get the airport express.
I felt that the express would be my best bet do to airtunes, the ability to retain three wired ports on my linksys, yet also have a wireless access point. The fact that it is as easy to take along with me to a hotel or another house, giving me wireless anywhere I go that has a network, as my powerbooks power brick, was just another bonus.
I have been happy with its performance so far and I had no problems tying it in to my network...