Please remember to follow the weight limits though. A seat is designed to only hold a certain weight rear and forward facing, and can damage the seat and be harmful to a child in an accident. Yes some people will say that is only a recommendation and they can theoretically hold a higher weight, but its recommended for a reason. Try and find a seat with a high rearfacing weight. I think Safe'N'Sound offer some really good choices.
Ours is a Safe'N'Sound, meridian I think. It allows for rear facing to 12kg, and forward facing up to 18kg, by memory. We chose it because it will last us a long time, and we liked the idea of DD being rear facing for as long as possible. It's a great seat and one that the installer recommended too.