http://www.expertvillage.com/videos/mig-welding-how-works.htm

You get a bit cheesed off with the

"Hi I'm Mike Rodgers" bit but apart from that very good to watch if you are a complete novice like me.

There is a series - scroll down to see them all (not to the side, that is a different bearded bloke, not to be confused with Mike)

mmm - as you say... You could pick a few holes in those videos.

What's his name again? I've forgotten....

like an older Barry Scott

have a look at http://www.mig-welding.co.uk/ too