I've had the a80 for a year and think it's a fantastic camera. I thought the flip screen was a gimmick when I got it but now I use it for every shot.
Most of the stuff from 2004 here is from the a80:
gallery.ulti.org
some specific galleries:
http://gallery.ulti.org/2004_tantalus
http://gallery.ulti.org/2004_starr-wall
http://gallery.ulti.org/2004_red-rocks
http://gallery.ulti.org/2004_tetrahedron-bachelor_glowballs
http://gallery.ulti.org/2004_cypress
I've had the camera below -20 C and it's been fine. The battery life cannot be understated, it can take ~600 shots with the screen on before needing new batteries and since it takes AAs they can move into my GPS if I need the extra juice.
If you have any specific questions, let me know.
--reid