I love the elegance of the frames built by this guy.
http://richchomiczewski.wordpress.com/
Very modular, simple and clean.
I am impressed!

I wonder if I can do something with Ikea GORM shelves. They come in two depths (13″ and 21″)
The price certainly is cheaper but may need a lot more hacking.
But maybe with a few extra shelves, I can create a