Since 29ers are still kind of a niche market, finding a used one could be tough. Sounds like a monstercross bike would be right up your alley, and might be worth saving your pennies for. I like the Fargo, but some other examples include the
Voodoo Nakisi,
Vassago Fisticuff, and my personal favourite; the
Van Dessel WTF (Whiskey Tango Foxtrot).