The widgets from jmwidgets.com that I mentioned before are very easy to use once you have a data widget created. I dirty hacked together a data widget that works with my web.py server by tweaking their php data widget example.
Check out steve071's github if you haven't already: http://www.homebrewtalk.com/f235/ras...roller-344529/
I used his python server structure as a model for my project. My server is a bit more complicated with a lot more data being passed between the server and the client. I'm sure that there is a simpler and more concise way of passing larger quantities of data through the different processes and the web server, but I didn't feel like fixing something that wasn't broke.
Let me know if your interested in seeing my jmwidgets data widget or anything else. I am planning on setting up a github when I get things a little more finalized. However, I haven't had a lot of time to work on it lately. In fact, I haven't even touched it in a few months.