We're getting Mini-ATX PCs at work at the mo, and their PSUs /look/ small enough to go in an A3000D (they're rated at 300W, inboard fan, and they even look like the original from the outside).
My old one is working fine, but I'd like to make up a replacement just in case - got an ATX wiring diagram, but has anyone got the pinouts for the A3000?
(guess I should go measure one before I get too carried away!)