Im not really a manual person, i tend not to do it all by hand, i usually use fraps and then upload them onto Photobucket. I must say it doesnt take a very long time, and the video feature on the free edition of fraps (its only 30 seconds) is fairly good if you want to make short clips for a film or something along those lines.

There was a thread about posting screenshots in the enterance hall, but i think somebody has deleted it...