Convertible carseats

My daughter (she is 4 months old right now is being evicted in a few months from her infant seat since we jabe another baby coming in January. I am going to need a converable carseat in a few months before my next baby is due...

I am not sure what kind to get and would really like a good one for less then $200. I need one she can stay in for a while, that can rear face and won't break the bank since we have to buy it ourselves this time, since we won't get a baby shower with this one.

If anyone has any good ones they can reccomend that would be wonderful!

Thank you in advance.