You guys have all brought up good points. As a fireman who has taken the carseat tech class (it's actually 40 hours) and a parent myself, I'm glad to see such safety minded people. As has been previously stated, the seats with the removable buckets are great for the first six months. Most manufacturers will sell you a 2nd or 3rd base for a fairly reasonable price. Also, most have a matching stroller to go with the carseat and the stroller can be used without the seat as well. Britax is a good brand, so is Graco. Britax is expensive however and Graco does just as well. As for where to place the kid, the center is best, but sometimes it can be unstable given the tendency for seats to raise up in the middle. Haven't done any LC installs, so I can't say for sure. Also, bear in mind that the bigger the kid gets, the heavier the seat will become and the harder on your back it will be to hoist it to the middle. The wood base is an interesting idea, usually I just use cut up foam pool noodles from WalMart. Also, some kind of barrier to protect the leather is advised. The kid really shouldn't lie flat (unless there is a specific medical necessity for it). 45 degrees is the recommended angle. That will keep the kid's head from falling forward. While we're on the subject of the kid's head, don't use any of the aftermarket head stabilizers. They are not designed and tested with any specific seats. The best thing you can use are two receiving blankets rolled up, taped, and placed on each side of the head. As the kid outgrows the bucket-style seat, a convertible seat facing rearward is the best and most cost-effective way to go. IMHO, the Alpha-Omega model from Cosco is the best seat out there. I've got four of them myself. It is the easiest to install, adjust, and disassemble for cleaning when the inevitable in-car vomiting occurs. When you put the kid in, make sure that you check the straps for tightness EVERY time. They do loosen up or the tightness will change depending on the child's clothing. The shoulder straps should be tight enough that you can only slip one or two fingers under them. The chest piece should sit at the armpit level. When facing backwards, the shoulder straps should insert into the back of the seat just below the child's shoulder level. They move to just above the shoulder level once the child faces forward. The best thing you could do would be have the seats installed by a qualified technician. There are a lot of firemen and cops that can do it. Check the website
http://www.seatcheck.org/index.html for one near you. The tech will show you how to properly fit the seat to your child and make sure that the seat works well in your vehicle. Don't just assume that because it's the "best" seat that it will fit in your car. Some just won't. Sorry to take up so much space, but this is a subject near and dear to me. Feel free to PM me if you have any questions.