Is this your first game, or have you made anything before?
What jams have you participated in?
What tools will you be using?
Tell us about yourself!
Neat coincidence you're doing this in preparation for Ludum Dare, I actually started doing this a year ago with the intent of practicing for Ludum Dare!
We don't have an IRC or anything, mostly because "we" is basically just me and and a few unfocused friends so far. This fortnight there are a lot more people who've joined the jam, so I expect the community will grow as the fortnights drag on. Until it's large enough to warrant a proper IRC channel though, this forum is the best place to come to. Personally I check #casual14 on twitter and tumblr from time to time.
Net Security is a neat field I hear, and starting programming young is the best way to learn, so good luck!