Chuck, since you seem to be in and out of a lot of airports, make a note to self to stop by the Danner Outlet Store next time you are in Portland OR. It's on the road that leads out of the airport and prices are extremely attractive IF they have the boot you want. They will not ship, will only sell to walk-ins.

Another possibility is to stop by REI and look at their backpacking boots. These tend to be light, with very good ankle support (even in the 6" boots), and are often built with welt soles so they can be rebuilt. REI also has a great selection of footbeds.

I have Danners and Irish Setters in the 8", all-leather, uninsulated versions. The Danners are possibly a bit tougher, but the Irish Setters are more comfortable, both with approximately the same mileage on them. The Setters are Vibram lug sole and the Danners are AirBobs to keep the weight down. So far, no problems with the AirBobs.