Cheapest Mobile Blogging

This summer I plan a road trip that includes hotels with internet hook up. I want to maintain this site for the two weeks I am away but want to spend as little as possible doing that. I also plan to visit some US micros for photo-laden posts at A Good Beer Blog. I have no laptop. What would you recommend? What is the absolute cheapskates’s approach to mobile blogging?

Update: I am keeping this up top for a few days. I need more butt kicking from portland as well as a good idea or two. One question – what is the most backwards laptop available second-hand which you could use? A Tandy 100?