1. Get a new case.
2. Transfer everything over to said case.
3. Hook everything up, including the stuff from the front bezel.
4. Hmm. The power doesn't come on. OK, disconnect everything from the front bezel.
5. Take a screwdriver, attempt to "jump" the board to make sure the dang thing works.
6. See computer turn on. See sparks fly as you forget you have a screwdriver near some jumpers. See computer turn back off.
7. Freak out for 10 minutes, not a second less. Turn computer back on.
8. Note that your BIOS has none of its settings!
voila!
Temporary stupidity on my part

At least everything's fine now...