Do you know any neighbors that have cable "a mile or so down the road" that you might be able to share a cable connection with? If so, the next question is - do you have line-of-sight to their property. If so, there are many different solutions for putting up an ethernet bridge or a long distance wi-fi link. Some commercial ones can get pretty spendy (but a quick checked showed prices coming down dramatically since last I checked) but it's also possible to put up a decent DIY Wi-Fi link using a USB WiFi adapter and a surplus satellite TV dish on each end.
With any solution the key is line-of-site.
