So I was on the bru website and it looks like the estimated ship date for the new Safety 1st Complete Air Convertible Car Seat is 8/03/09, which would work fine for me, even if it gets delayed. So what are the rules, I need to keep my child in a car seat until she is 7 and 70 pounds? So once she reaches the 50 pounds weight limit on this seat, I would just move her to a booster seat? Would it be a lot safer to just buy the sunshine kids radian 80 and keep her in a full carseat longer? However, my baby is so tiny I can't even imagine her still needing a car seat when she is 80 pounds???