Well, I own a Kelty Redwing 3100 and I like it for short trips most of the time. Used to be my main pack for a short while. It fits well for me and I'm 5' 7". You should however take just a few hours and store hop to try a few on to make sure they fit okay before you go and actually buy the thing.

Other than that, not knowing exactly how much you "overpack," that's the best I can throw at you at the moment.
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In all things of nature there is something of the marvelous.-Aristotle