Gonna be my first jam ever, can't wait to crash and burn like never before!

Tools I'm gonna use:
Unity3d
Blender
GIMP

Tools I'll use if I can practice with them beforehand:
Bfxr
Audacity
FL Studio

Really, I have no idea what to do as far as audio goes, please let me know what's easiest to use. If nothing else, I will acapella all of my sound effects.