I performed my first attempts yesterday for welding. I tried to use all the suggestions posted here and all the youtube videos I had watched. Other then that, I had no real training. While I would not enter any of my work into any contest, I think it turned out ok. Not pretty, but for the end to end weld, I bent the rod and it would not snap. See below.
My $50 used 85 Amp, but 10 year old new unit (i.e. 10 years old and never used by previous owner)

First weld, two rebar welded end to end. Would not snap under bending test.

Not so pretty limb welds

And the final product. My wife's request to build it as my first welding experience. Now we need to drink more wine.

Now on to more CT work as I seem to have been on a 5 month hiatus.