I've been writing a electric brewery control system for awhile now. It's not pretty, but it does have a web interface and logs to a remote graphite server for nice graphs.
The code is up on github if anyone needs some ideas.
https://github.com/seiniku/drunken-control
Github is a good place that would let everyone see/contribute to the coding project easily. I think it'd be worth starting up a github project so that information can be put into one place.
That being said, there is a lot of knowledge floating around this thread. Thanks for putting in the...