I'm trading in a 2005 chevy cavalier. I'm looking for a car to trade it in for a

maximum of 10,000. My pref. My preferences are a dodge neon sedan, or a ford focus...any opinions on what car to choose? I have a 1 yr old and a 5 yr old. I need a roomy but affordable sedan.
It is a 2 dr. I need a 4 dr. That is why I am trading it.
It is worth like 4000, and I'm putting down 800 towards the new car.