Help finding a car for me?

iv been looking for a while. want to spend between 15-24k ish on a car. im 20 years old. been saving for awhile. im interested in the altima coupe 6 cylinder engine. or maybe 2005 - 2008 infiniti g35 coupe but then again insuring that kind of vehicle might be a little to high for me. or go for a new car such as the 2012 ford focus. i think the interior is awesome. and the exterior is decent looking. what do you think be the best choice for me. i live in upstate new york so fwd or awd prolly what im leaning to. any suggestions?