If it's checking out fine, then how is it dead?
I was having lots of weird slow start and once or twice no start issues with my '95, and after the battery checked out fine, I finally realized that the cable bolts attached to it were old and nasty and kept getting loose. Replaced those, and haven't had a nick of a problem yet.
But yours does sound a bit different--still worth checking, though (if you haven't already). Otherwise, there's a lot of different things it could be.