Why yes, yes I do have one.
I am using one right now on my iBook (sorry I don't know the model - probably the basic one) and I have had no problems whatsoever and the access to change setup is the same as on a Linksys (IP address in the web browser) It is 802.11b router and I got it for 19.99 with the mail-in rebate. 😀 I don't use it much for transferring files so I figured I'd save $30+ by not going 802.11g. I'm not sure what it is like to set up on the Mac because it is sending me the signal from the PC where I set it up on. (CD comes for Windows only) But it gives instructions for a Mac. I can't recall if the directions are for OS 9 or X but either way I'm sure it will suit your needs wonderfully. No problems with disconnection or anything.
Hope that helps.