Software
Tubecaster – http://www.tubecaster.org
Tubecaster allows you to download videos from YouTube straight into MP3, Ogg Vorbis, MP4 formats and others. Very useful for taking away on portable devices.

Tubecaster 2.1.0 for Windows
tabs2spaces – Download
Command-line Python script which takes a file and converts all its tabs into the given number of spaces.
Python Source Code Line Counter – Download
Command-line Python script which counts the number of code, comment and blank lines in the given Python input files.
