Well, I finally made a decision! I bought a Chicco Nextfit! It seems really nice and I hope LO likes it. I'm going to have DH install it today. I got a fantastic deal, too! I had a bunch of stuff to return to Babies R Us (gifts that DS didn't need) and I had a 20% off coupon, so I got a $300 car seat for $129.50, tax included! Had to brag!! :)
Thanks to you ladies for all your help!!