in reply to Help match relevant data from three data structures

I'd be delighted to do the job for you. You can contact me here for my rate. Of course, I'm not cheap. Alternately, you could post this to or one of the rent-a-coder sites.

Of course, you could just take the specification that you've described (which is quite good) and actually write it yourself. You'll be using a lot of hashes.

That said, what do you want "faster" for? This should just run once, right? Who cares if it runs in 2 minutes or overnight so long as it gets done ... ?

My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?