D.C.
Chicco does make a side-by-side double stroller that looks great. I was in the same boat looking for a double stroller for my 1yr old and newborn. We bought the combi because it's much smaller and lighter than the graco and was easier to use. (We walked all around the stores with them while shopping to try them both out.) Plus, we could snap our infant seat in, which we wanted. I wish we had bought the side-by-side chicco. I never used the double stroller to snap the infant seat into.....ever. I never use it at all because, even though it's smaller than most, it's too big and I feel like I don't fit down any aisles at stores or walking through crowds. We got it on sale, but it was a big waste of money. I use my peg perego single stroller, which I love. When my son was a newborn, I would carry him in the bjorn carrier and put my 1yr old in the stroller. Now, I put my son in the stroller and let my daughter (now 2) walk. The side-by-side would've been much more useful.
Whatever you get, try it out in the store a lot. Fold it up and down yourself, lift it, walk around with it. (Put your son and your diaper bag in it and walk around, so that you can see what it feels like with weight in it.) It's something that you'll use a lot, so you want to make sure you like it.
