Hmm, TiBook just decided to come back to life. I just thought I'd try one more time after making this post, and it booted right up. Even put the HDD back in and it booted straight into Leopard. I'll leave it running tonight and see how it goes, but its working fine now. *shrugs* My guess is it just didn't like me embarassing it like that for all of teh intartubes to see.