Ok so we are looking into buying a carseat for our son. He is already close to 16lbs and is very tall also. He is so heavy in his infant seat. So I think I have it down to three choices. The Evenflo Triumph, Graco ComfortSport,, or the Radian 65. I just can't see spending over $200 on a carseat right now. Please help. Or if you have any other suggestions.