If you do a lot of riding around town and stopping for cars and red lights, stop and go riding, one of the new generation crank forward bikes might be the right bike for you. Other posters have mentioned the Giants, the Townies and there are also the Rans series of crank forward bikes. These are not recumbents, nor are they uprights. Kind of an in between bike, not made for serious racers, mountain bikers, or road bikers.
But they are sure a comfortable breed of bikes, and although I don't have one myself, the more I see of them the more I'm convinced that for the average almost-retired baby boomer who wants to get out and do some healthful riding or commuting to work, they are a great bike. And most important, are really comfortable! They are sort of a "good for nothing, but good for everything" bike. So if all else fails, you might try a few turns around the block with one of these. Their owners swear by them.
Because of back problems I simply cannot ride an upright, but would dearly love to at least be able to ride an off road mountain bike on less challenging trails. I've been looking at the crank forward sort-of-mountain-bike from Rans. A serious mountain bike - heck no! But a reasonably good comfortable rideable bike for light off road riding for a guy like me? Possibly - I sure hope so!