Consider a cyclocross bike. Rides like a road bike, or at least much different than a mtn. bike. After commuting on a Trek 7000 for 12 years I switched to a cyclocross bike, and it is much more fun to ride. Mine is a cross check. Not sure what there is to not like about the bars, but there are many options out there for different CX bikes and bars. Kona Jake is another popular CX bike, but same bars as the cross check. Go to your LBS and try one out, then decide.

I personally would not recommend a hybrid, only thing it has on your present bike is slightly larger wheels. You bike will likely climb better anyway, assuming it is geared for climbing. Most mtn. Bikes are.