I just showed my DH the Baby Jogger City Select website and he really likes the idea too.. we might just have to go shopping soon
With the seat configurations, there's one that I don't recommend. The first time I put the kids in it I put the seat closest to the handle bars (the top seat) facing forward, and the lower front seat facing me. I put my toddler in the top seat so he could see out at the world, and my bub in the bottom seat so she could see me, and also both the kids could see each other. It was great except my bub would put her fingers where my toddler feet would go, so if he kicked his feet around at all there was a good chance he was going to get her fingers. Eeep.

So now whenever I use it I have the top seat facing me with bub and she loves it, and my son is in the front lower seat facing out to see the world and he loves it too. Oh, and it's low enough that he climbs into the seat by himself (because at this age EVERYTHING is "I do it!", haha).