When I was looking for this sort of pack, Golite was the only one I could find in a Tall (Long) size. I got the original "24" Pack, which is maybe 18 liters? Good size for lightweight dayhiking, though I read somewhere that Ryan Jordan over at Backpackinglight used a 24 Pack for a 4-day backpacking trip through Yellowstone.

I liked the Salomon Raid series packs, the Ultimate Directions packs, and the little Gregory A/R packs, but none were long enough for my torso, and all of their shoulder straps were *way* too short. Looking around the 'net just now, it seems that adventure racers must all be skinny and about 5-9.