A.L.
Unless you are actually going to jog with the stroller, I wouldn't recommend buying a jogger. I have a jogger and I run often. It can tire you easily because the combined weight of the stroller and the child requires you to burn so much extra energy. I only have a single jogger, and when i was using it, my kids were younger than yours. 60 additional pounds plus the stroller weight is a lot of weight to push.
Secondly, like someone already said, if you are just using it for walks, the joggers don't turn like the regular strollers do. The front tire stays straight on mine and doesn't turn, so I have to push the handlebar down to lift up the front tire. They do make a few with turning front tires I think, so if you're getting one for walks, make sure the front tire turns.
I definitely agree with the person who said buy a wagon. We have an all terrain wagon with high back seats, and my kids love it. We use it ALL the time--for walks, trips to the zoo, parades, etc. THe kids love it because they can see in all directions. Good luck!!