Is this market research? Cool!

My needs are topography-driven, so basically I need mtn bike gears to accomodate myself and the times I use a trailer. The rest is negotiable, but so far I've found my best gearing on ... a mountain bike! And I retrofitted a racerboy Felt flatbar roadbike to give it more function (it seemed more functional than Felt's actual roadbikes w/ drops, 'cause it had eyelets for fenders/rack, but I was wrong).

So, mtn bike gearing, rack and (full) fender eyelets. I think something like the Bianchi Volpe has all that stock but I can't run out and buy one of those right now. Rasslin' w/ the derailers on the Felt had led me to believe that hub gearing is the way to go, but it seems like only a rohloff has the full range I would want, also $$. But the mtn bike I mostly ride has muuuuch more reliable shifting (is that just an 8 vs 9 spd thing?), so I am content for now.

mtn bike/wide gearing (~20-100 gear-inches, bigger gears fine but not at the cost of the bottom end), rack and fender eyelets, bulletproof shifting. I think that's about it for me.