We are expecting our second in April and also considering a minivan. We drive a Toyota matrix right now which is ok, but not much front to back room for rear facing carseats. We also travel frequently to visit family and I think a van would be more comfortable on the highway.
I'm glad to hear people say its a good vehicle for a family of 4 since we are not sure if we will have more kids after this one.
Mom to Anna born Feb 2011 and a new addition coming in April 2013!