Still swear by my kelty tioga external frame pack.
I second that. I upgraded from an old North Face external frame pack in the late 80s to a Kelty Super Tioga and it is the most comfortable pack I've ever owned -- and cavernous if you need to carry big loads. That was in the days when before Kelty went strap-happy and bloated their packs with 2 lbs of unnecessary thingies. Is thingie a word?