agree... you won't be in a huge loss situation or one where you are paying through the nose for fixes...
new is always tempting with low rates and some great deals always on... you can get a car in your payment needs, but it might be for 7-8 years.... and i can never tell someone that is a good idea. you will likely get not only a lower rate, but an easier finance approval on new as well.
there is no real brand to stay away from in your price range... i would maybe ignore fiat... other than that, you get what you pay for with cars... a few bucks more might buy you features, style or (perceived at least) reliability...
i'd say go sedan or hatch... stick with 4 doors for resale and the fact that you won't grow out of it...
something like a corolla lease would probably work for you as long as you are sure about your kms/yr... the high residual will keep payments low, under warranty, so out of pocket expenses will be minimal, it will build credit and allow you to see what the future holds without being stuck with a car.