I just pulled the trigger on these at Nashbar so I could have something to use on my LHT when I get is. I figured I would pass on that they are on-sale, as this price appears to be really nice compared to anywhere else I could find. The reviews seem to be positive as well, so I figured I may as well go for it for the price.
I plan on getting some Lone Peak front panniers to go with them. That will give me "full waterproof" in the back, and breathable storage in the front.