WRT-54G, I like you more now...
So this time, no matter what we did, we couldn't get the two lines after the switch to pick up an IP address. My intern had a great idea, of using a router (the aformentionned Linksys WRT54g) with some non-vendor firmware, to allow it to run in client mode (or act like a wireless bridge). After a few minor hangups, we got it working.
The Linksys WRT54g is a very versatile piece of networking hardware, and I recommend it to anyone...and having a cheap wireless bridge is the first step in making sharing your internet easy. Think about this scenario...you live in an appartment building, and while you like the convenience offered by the internet, all you really use it for is the occasional email and to post to a blog once in a while. You don't use high bandwith applications like BitTorrent, and while you like the idea of how fast broadband is worth, it costs quite a bit considering that you could probably get by with dialup at a quarter of the cost (if that). If you get along well with your neighbors, why not share the connection? With a wireless bridge you can, and you don't need to worry about putting your PC with a wireless card near the signal source, you can put the bridge there, and run that to a router, and then bounce the signal around your place wherever you need it. For more info on the WRT54g, check out wrt54g.com. I like mine, and I'm debating another, because of how flexible it is with different firmwares.
*always encrypt your wireless connection, unless you want everyone to have access. Also, check with your ISP rules regarding sharing of connections.