Hi!
This is the first time I’ve done a game compo, so I’ve no idea how it’s going to turn out 
I’ll be using SDL, SDL_image and PortAudio (and C++), and some basic template code I’ve had for a while (window setup, a drawing wrapper, random number generator etc.). You can see it here: http://www.niallmoody.com/downloads/GameTemplate.zip
Hopefully I’ll manage to do Linux and OSX versions as well as a Windows one of whatever it is that I come up with, but we’ll see how things go…