Boyd, great job.
What are your plans for the shelve area above the smaller box and if possible could you show us how you manage the contents of the storage bins?
I have a neighbor who asked me to come pick up a similar cabinet but I am hesitant as I would have to reorganize/arrange cabinets and my hardware.
If I could make it work I might just go pick it up.
I plan on looking for a metal pencil drawer from an old tanker desk and mounting it to the underside of the top.
For the hardware cabinet, I've just got my Plano organizers stashed in there for now. The drawers of the cabinet are 25" deep and I can stack 2 Plano organizers in each drawer with room to spare.
As my hardware collection grows I'll eventually move to individual/open top containers. Most likely from Schaller. Their boxes come in several different dimensions and depths. Here is their website -
http://www.schallercorporation.com/servlet/the-Plastic-Box-Assortments/Categories

Oh well, 'ya gotta go with your strengths!! ha ha