Justin and I went to Babies R Us and tested out all of the double strollers that they carried. After lifting them, folding them, zooming them around the aisle and sticking baby carriers in them, we both ended up really liking the Graco Quattro Tour Duo Stroller. It's a bit heavy, but it folded up easily and Justin really liked the height of the handlebars because he's 6'3" and won't have to bend over uncomfortably to push the stroller. It's also nice because the stroller will last the twins through their toddler years.
Before the stroller was purchased, I went through Amazon reviews to see what others had to say about their experiences with it. Overall, people seem to really like it, the main complaint is that it's a little heavy, but the way I look at it is: it's a double stroller, of course it's going to be a little heavy. It will accommodate a Graco SafeSeat Car Seat.
We also spent some time looking at cribs and we found one we like. I just want to wait until after the ultrasound until we get serious about picking out furniture for the nursery. There's plenty of time for all of that!