As a poor college student, I was pretty happy to come into a 20"
Aluminum Cinema Display despite the fact that it doesn't turn on.
After replacing the power supply, the process of elimination points to
the only other possibility being the main board. Unfortunately, Apple
being the wonderful parts-cartel it is, has limited the availability
of said object. If anyone has this part or can pull it from a display
with a broken screen or some other defect not related to the board, I
would quite happily buy it off of them.

Price would vary based on how assured I can be about the board. Please
help :) !