I bought them from Yearwood Performance in Albuquerque, but I'm sure they are probably sold in the Denver area too... Happy enough I bought a second one. Half of them powered from one source, the other half from another. One in the 40 (part of the 3B swap) has hot/ACC sections, the other has hot/IGN sections. I used a solenoid from McMaster Carr to control the power for the switched sides, so that the control can handle MUCH more than 30Amps (which is my beef with the Painless ones--and the price).
High quality wire, and 12GA wire throughout. Less than half the price of the painless, but you have to do more--it's JUST a fuse block.