Here's the deal: I've got cable coming in and through a LinkSys router to my 3 computers. My wife is setting up a new machine upstairs, so I'd like to add wireless. Since I already have a router, I'd like to avoid buying another.

It looks like what I really need is an "Access Point" and have found the Belkin F5D6130. Anyone familiar with this hardware? Or this setup in general?

Is IEEE 802.11b the best option?