I'll look into it.
@Nate: Your block building is getting much complex. Like said, it may be worth your while to look into the cost of having someone nickle plate your blocks.
The CPU block industry is probably much harder to get into, but if you were to attempt it, you may want to look into the cost of getting EDM notches put in copper for impingement cooling.
IIf you were to tackle the CPU block industry, you would probably want to add flare to your blocks to set them apart. I am sure it is technically possible to add tri-color LEDs to a block which would change color based on CPU fan speed setting when plugged into a CPU fan header.