Gregory Z-Pack (2003). Color: Black/Grey. Size L. This pack has 600-700 miles of trail use. I have trimmed much of the excess strapping, but as I am a big guy, there should still be plenty of room for most hikers out there. This pack series ran short in the torso and should fit folks with as little as a 19 inch torso.
Asking $45 (which will include shipping).
Mountainsmith Ghost (2003 blue version) One torso length, I believe fits 18-21" torsos. This older version Ghost has about 350 miles on it. Overall very good shape. Asking $75 (including Shipping).
I recently got a Gregory Z55 and REI Quick UL which are replacing these packs in my inventory.