All the packs listed above are great and the Badlands Warranty is top notch.
This past year though, I took a different approach...a Backpackers Pack. I chose the Gregory Z65, but it was a close decision between this and the Osprey Atmos. Backpackers Packs tend to be real comfortable and depending on which models you choose, can also take a pretty heavy load.
The Osprey Atmos is basically the Badlands Sacrifice without camo. The Gregory Z65 is very similar, but had a couple of different design features I liked.
Both packs have different torso sizes and have plenty of lashing points and can both cinch down to almost nothing and expand to accomodate more gear. Also, both have the "Hypervent" type of system to keep your back cool.
I hiked around allot with about 50(+) lbs of gear and the pack never became uncomfortable. Higher loads near 100 lbs are possible, but as with any pack; it's not going to be a joy to carry, just tolerable.
?-ERock-> ?