I’m in the competition! Here’s what I’m using:

Language: Java

IDE: Eclipse

Libraries: Yamanu, Better Parsing (possibly)

Art/Textures: GIMP, InkScape

Music/SFX: Audacity, Abundant Music, iNudge, Fake Music Generator

You can find Better Parsing here, and Yamanu 1.2 here. The most recent Yamanu video is here. Hope you guys have a good Ludum Dare!