A small propellor-driven boat with similar electronics to the Sailbot was featured on the front page of SparkFun yesterday. Points of interest include the interface, written in Python and built using the Google Earth backend, also the demo of its mapping capablities provided by depth sensors - if some generous researcher at MUN felt like providing us with the transducer, I'm sure we could make room for this feature. Sparkfun also hosts an annual Autonomous Vechicle Competition, the 2012 comp is June 16th.
Also, Sparkfun's Free Day is Januaray 11th, great time to stock up on a few parts if we can get a pass
[Which reminds me about my own order, can't wait to try out a few of their 8-pin microcontrollers (PICaxe,ATtiny). They come in a variety of small SMD packages which means a pretty tiny footprint and at less than a buck they'd could be a nice replacement for a bunch of discrete components in a control circuit or swarm robot. --Jordan]