Thanks for the input, old_engineer.

@Olaf
Thanks for putting together these totals. It's good to see how the price is shaping up.

I have a question about the PSU. What is the load on the 2.5 V rail? Aren't we going a little overkill with the 10A supply? Maybe we could save a little money and space by switching to the LMZ12002 or 12003 (2A and 3A, respectively). The package is slightly smaller, too.