I think other people have asked for sections and Scott you may be working on a more sophisticated solution but in the mean time there is something easy you can do - add a new field type called "HTML" (datasprings uses this in their dynamic registration module).

Basically the way it works is you create a custom field, give it the new HTML type and then type whatever you want in the HTML box(styles, fonts, pictures etc.). In the form only the field is displayed...without the caption.

An even easier way may be to create a field type called "blank" - you just create the caption and then only the caption is visualized. The problem here is that you can not put HTML in the caption.

Either way this will give you fields you can position anywhere on your form to serve the purpose of Section Headers in the property submit form.

Let me know if this makes sense.