I came across  a guy on youtube who makes a lot of computer related tutorials.  Some of them are really useful for people dealing with worship media, especially those who are on a budget and want to use free/open source software.

Some of my favorites are:

Rip DVDs directly from VLC Player

Virtual Dub – Free Video Editor for Windows

Remove Vocals from MP3 Using Audacity

Check out his site for a full listing of his tutorials: http://youtube.jimmyr.com/