So it's about time for my annual "erase and install" just to keep things fresh, and I've decided, out of curiosity, to try something new. When I wipe the drive and reinstall OS X, I want to see if I can survive a month using nothing but free software. No Microsoft Office or Photoshop, only what comes with OS X, iLife, and software that can be legally downloaded and installed for free. (Open Office, Gimp, etc.) So the question I ask from all of you now: what totally free and totally awesome programs do you use? I'll need everything from video conversion utilities to FTP clients to office apps and games. Go!