Nice job. You have a lot of examples. I really like your little jig to drill holes in Masonite. I'll have to make one of those. If you haven't seen it, be sure to check out Jody's adjustable stool project on WT&T. I have one with a gas cylinder that I will probably change over to the long all-thread so I can get a lot more range. Finding the right height and being comfortable makes all the difference in getting great welds.
If you want, you can use the video tag to put a video right in your post like this...