Paul, glad you chimed in. I plan to add some rod storage to it, I think underneath the drawers and the angled shelf is the place to do it. I may do capped tubes that I can pull out to deal with short pieces.
I also have 2 questions for you.
1. What's a good gage for the drawers? I measured my Craftsman cheapo drawers and they are like 22-24 ga, which is clearly too thin to MIG weld (for me...). 16 seems too thick. I'm thinking 18 or 20 makes the most sense. Any thoughts?
2. How did you attach the drawer slides to the thin metal? I don't want screws sticking through to catch things. It looks like you have some kind of a smooth, low profile "nut" you used, but I can't make it out in your pics. Is it like a PEM nut or something?