OK...so I was in your situation a year and a half ago. BTW, Chicco kept telling me that their double stroller was coming out...and it still isn't out, so I wouldn't hold your breath for that one. The Bumbleride that someone else suggested is compatible and awesome but was too expensive for my budget. The sit and stand was not an option for me b/c my little boy would be all over the place in a mall, etc. AND we go on a lot of walks so the standing would be a nuisance. There is not a lot of leg room on the sit and stand with the carrier in and the toddler seat. The Graco Quattro does work with the carrier, but I wanted a side by side option. The ones that I found that worked well when I tried in stores were the Peg Perego 60/40 side by side, the Zooper and the Baby Jogger city mini with the car seat attachment. I actually bought the Zooper on craigslist and used it for a few months, then resold it and bought my City Mini which I absolutely LOVE! I do not have the car seat adapter b/c my little one was old enough by that point. The stroller rocks = fits through doors with out issue, turns on a dime, reclines fully for sleeping babies, tons of leg room for my older one. I highly recommend. Advice if you decide to buy it - find a Babies R Us coupons for 15 - 20% off, then take it to Buy Buy Baby in Canton to purchase. You can use competitor coupons, but not the BBB coupon b/c the brand is excluded. I used a Toys R Us coupon, plus I used all of my Buy Buy Baby and Bed, Bath and Beyond coupons to buy some of the accessories. I am actually pregnant with #3, and I think I will strap the carrier in with the current "belly bar" that I have instead of purchasing the big carrier adapter. Not sure if that will work...but I will see! Good luck with your purchase!!!