Try to think back on anything you recently installed/modified. I had the same problems, and my dash lights went out. Very fustrating. Everytime I popped in a fuse, it blew. I sat there and thought for a bit, and figured out that I just installed a new head unit a few days ago, and took that out. Seemed that one of the bare wires were touching the chassis. No-no. Covered up the bare wires and everything else worked fine!
Grab a beer and ponder for a few minutes.