I just realized I never updated our car seat situation. We ended up choosing the True Fit, made by the First Years. While its rear facing pound limit is a bit lower than some other seats (35lbs vs 40lbs), it has a very high shell and it is likely that the Eskimo will outgrow the seat in height before weight. The Eskimo loves his new seat and I feel much better knowing he's safe as can be.
We did hit a few bumps in the road attempting to purchase it, however. We bought it as Buy Buy Baby because it was vastly cheaper than Babies R Us AND we had a 20% off coupon. They had one left in stock and we bought it. We got it home, and after spending an hour trying to install it and cursing at it, I finally called the customer service number. Turns out it was actually missing a part! So, I returned it that evening, only to find they had no more in stock. The folks at BBB were super helpful, even calling around to other local retailers to see if they had any in stock and if they would price match. We ended up having to order it through BBB and it was delivered to our house within a week.
As it so happened, it arrived on a Friday and that Saturday there was a carseat installation event at the local children's hospital. So, I dragged my husband and son up there to have it installed by professionals. Hey, if you're going to do something, do it right. We got some free t-shirts and advice and everything went really well. The best part is that I saw a billboard on the way home from the event saying that 3 out of 4 carseats are installed incorrectly. That left me feeling pretty smug. :)
Anyway, my advice to you if you're ever in this situation is to go somewhere and put your kid in a bunch of different seats. Try them out. See how they fit. Then, ask your friends, both online and in person, about their experiences. They may know something about a particular seat that will be a deal breaker for you. Good luck, mamas!