Though the intent was to focus on selling the wheels, and then just throwing in the tires.... lots of folks are asking about the tire tread.
The truck is in the shop getting the new wheels and tires put on and it will be Friday (02Jan09) before I can get any more pics (ie: specific to the remaining tread).
Until then, here's a couple recent pics of the tires where you can get a feel for the tread remaining.
As previously mentioned, these tires have about 50K miles on them.