Thanks for all the input.
I just ordered 2 Britax Frontier 90 seats. I picked these seats because they are safe, install securely with the seatbelts, and allow the headrest and harness to be adjusted quickly and easily without taking the seat out. I have 2 boys ages 2 and 5, but rarely haul both of them in my car. We have a minivan for most family outings. If I am hauling 1 kid, then I can quickly adjust the harness height and put them behind the empty passenger seat so they don't kick the back of the seat. I'm 6'4" so there is minimal room behind my seat, but it will work for some trips if I have the whole family in my car. I may even try to install the 2nd seat in the middle, but I doubt that will fit. I also plan to just put a black towel under the carseats to protect the softex seats as much as possible.
Now back to more exciting topics :uzi: