One note for wifi - if you have a home cable modem, find out if your carrier (and plan) are part of http://www.cablewifi.com/. In Comcast territory, it seems like these days most business connections going in also come with a wifi hotspot completely separate from the business service - the only common item is they're on the same coaxial cable and they plug an adapter in. I believe Comcast is putting these in a bunch of their outside equipment cabinets as well, so you'll find coverage in the oddest places.
The connections are fast, and at least in the Chicago area they've been spreading like the plague (they use red blobs to show areas of coverage/infection on a map).
Also find out if any of your friends has a cable internet carrier that's part of that deal. (Almost certainly yes.) Then beg or bribe them to create a sub-account for you under their cable account. (At least with Comcast this is easy, for some small number of accounts.)
Thanks to my cable provider's wifi network, I can get fast connections at my laundromat. Great time to get things done, since you're spending most of the time waiting for clothes to finish washing.
The connections are fast, and at least in the Chicago area they've been spreading like the plague (they use red blobs to show areas of coverage/infection on a map).