There are a few '05s still here in SoCal. Here is a good place to see some comparisons, and I know they discount even more off of these prices:
http://www.pasadenahummer.com
check their specials page.
They have a pewter lux with air and brushguard that I know they will let go for 46k. it was over 58k sticker. the driver seat looks like it is a year old though as it was a showroom vehicle that had alot of people in and out of it. But it has been in out of the elements.