we had a graco snugride until he outgrew it. (35 pound max but he got too tall)
now he rides in a Britax which has consistently gotten excellent ratings.
can help you find good deals if you have a bit of time before NEEDING IT NOW. I think we got the britax for like $75 less than regular price which helps alot.
also, he's 2.5 years old and still rear facing in the middle of the back seat.
The new recommendation is rear facing until 2 and/or 40 pounds (most/maybe all seats aren't designed to rear face after 40 pounds)