[devicenull]

Since I'm pretty much it, except for the mentor helping me.. my system is pretty much: compile, load, debug, reload.. etc.
Every day or two I submit the code to a svn server running on one of my computers, working .hex files are saved when I add a major feature (So if something gets really screwed up, I can load one of those, and keep the rest of the team happy)

It works out nicely.. I have around 3 copies of the code on seperate computers, (laptop, server, desktop) plus a copy on my flash drive.. so its pretty hard for me to loose all the code.