I had occasion to create a video tutorial and it took me 4 tries before i got it right.. The first 3 takes, i videoed the process and used final cut express to edit and add titles and stuff. but video recorders and computer screen do not get along well. Then i found snapz pro x that does screen capture with voiceover. what a difference! and easy to use!! I'm happy.
Anyway, here is a short tutorial "Peter creates a blog"