They're not bad looking, but click on the link again and scroll over the Thornbirds.
That's my pick and will have them delivered for spring 2012.
As for wear - I've had Swampers, Swamper SX's and Boggers and have had no issues putting 60k miles on them with mixed city/offroad use. I bought a used set for one of my Bronco's and put over 120,000km (70k miles?) before re-selling them as they still had 1/2" of tread left.
Depending on where you're going, that tread pattern looks agressive, however if you're doing mountain trails in wet conditions, I'd watch out for sideways slides off the trail going down hills.
Thornbirds are RIDICULOUS ! They have such a large tread they will wear uneven, they vibrate like a SOB, they will ruin your gas millage and feel like you just added 20lbs per tire but you will NEVER get stuck unless you frame out.