I have an Explorer with 3rd row seating that's great! I can fit 2 Britax Frontiers and 1 Britax Marathon all in the second row with the third row down for cargo!
I recently got pregnant with #4, so the third row HAS to go up in April, but I still have enough space behind the third row for my Wendy B umbrella stroller (I actually have two and I can stack them on top of eachother), and groceries. But even with the third row up, I put the two Frontiers in the back, the Marathon and the SafeSeat in the 2nd row and can still fold the side seat in the second row up to allow passengers in to the 3rd row. The 2nd row has all individual moving seats, it's not a 60/40, which is GREAT. I can even remove the side seat in the 2nd row if I want a more 'mini van feel' on the INSIDE of the car, but it's still my trusty Explorer :)