A few weeks ago here in Denver, SHARC, FRR, and Club Workshop put on a mini Maker Faire, robot expo, and attempted a firefighting competition.
Some really cool things like Roomba commanded by patterned flash cards, a butler robot with obstacle avoidance and voice recognition, RC tank, air canon powered by stationary bike, cellphone controlled robots, and loads more. Really a great time! Teaser pic:Here's more pics and write up on my blog
The firefighting didn't quite happen; only two robots were functional in any sense... and only mine was able to demo (albeit with remote control) finding the candle flame... it couldn't put it out because I goofed up my fan motor driver circuit design.