SS is not as simple or difficult as it sounds, its a common misconception. SS adds a new dimension to pedaling, it is a much smoother and quieter ride.

29er wheels IMHO (Mr. Gary Fisher as well http://www.youtube.com/watch?v=km67fjE8DqE) are the way all MTB's will go. Originally wheels were made 29 and 30'' but as roads became smoother, there was not as much need for a large wheel. So technically that 26'' your riding is more like a road wheel than ANY 29'' wheel.

There are many great bikes that are not only meant for offroad, but do amazingly well. For example, Trek 69er, Gary Fisher Rig, Bianchi makes a lot of solid built SS, Surly SS's.