R.K.
I'm in the same boat, only no dog, just have 2 school aged children and having another one. We've been debating SUV vs Minivan. The SUV 3rd row is a huge advantage, but leaves little trunk space. But, who wants to say they are driving a minivan (sorry, but I'm vain).
Take a look at this website: www.MotherProof.com. The editor is a SAHM who tests autos and gives reviews based on what Moms are really looking for. Hope this helps.