So, I got myself a router. I don't actually have a wireless computer, but:
a) I'm hoping to be able to use a laptop from work once they set me up with a work-from-home situation, and I'll need one then and
b) Mike is a happier camper if he can use his laptop while he's here
So, I got a D-Link DIR 615 Wireless N Router. It came with a CD-ROM to set me up, and that CD-ROM installed something called "Network Magic," which appears to be some kind of system that makes sure I'm connected and fixes it if not, and ultimately keeps things organized. I'd been concerned about doing this because I have Internet VoiP, which means I have a second small box that keeps things moving in addition to my modem, and I knew there would be confusion. (I also had a major battle with Earthlink when I tried installing the VoiP, which led to my loss of Newsgroups and the discovery of Tier 3 techs who were not outsourced, but not after spending literally hours and weeks on the phone with them.)
I think this all works now. But I swear I'm not sure how to test it. Mike was able to connect to use my wireless when he was here, but even he's not sure if he was logged into mine or somehow got into someone else's.
But for now, I'm one step closer to working at least several days a week from home. Next step: I'm gonna get me a Macintosh. That's after the tax refund arrives, however.