Hi Russell,
OK got it, you want to un-hook from Roadrunner.... and you think you have an unsecured wifi host somewhere within range? You might check your laptop and see if it has wireless capabilities. If so you will likely have to turn on the "antenna" and ask your laptop to search for available networks within range, it should bring up a list of connections if any exist and tell you if they are secured or open (ie public access) like down at the local Starbucks. If there's one out there you can then connect to it, and give it a test drive to see if it is fast enough for what you need.
After that (if all goes well) you could then install a wireless network card in your desktop, or plug in a USB dongle and choose that as your preferred device on startup. Then repeat the search (like you did with the laptop) and you should be in business.
Then you can call the cable boys and have the internet services terminated and get the adjustment to your cable bill accordingly.
We run a large wireless network here at the house and even with everyone online it sure seems fast enough for the 7 clients we are supporting..... well except for the Googletalk issue of mine that still hasn't corrected itself. If it seems confusing, shoot a query in Devon's direction and I'm sure he can assist.
Take Care;
Doug
"what is this quintessence of dust?" - Shakespeare