I just posted this on my bmb yesterday - hope it helps you.....I can recommend the Babytrend Navigator double jogger. We got it a couple days ago. It is amazing. It works - get this - with one carseat and one kid sitting in the main seat - no balance problems at all. Yes, it is heavy and hard to move in and out of a car, but it is doable (and all doubles will likely have the same problem.), but it is such a smooth ride! We took Shadow out into the woods a few times now and it was even ok in sand. Hugh basket underneath, it reclines separately, the canopies are separate, it can even lay flat when reclining. And it turned on a dime.
I haven't gone to a mall with it yet - for that I use my sit n stand - so I cannot say if it fits well through doorways. I know it works at st grocery stores (even though the cashes don't work, you have to take the one for wheelchairs).
Anyways, I just thought I'd share. Oh yeah, and I got it delivered for a grand total of 205,- after taxes. USD, not CAN. Had to have it delivered to a friend who then brought it over the boarder. Seems like Canada doesn't allow it here - like rock n plays. But yeah.....awesome!