Im guessing the only 08' females you will be able to find for around $300 is a pastel at a show. Otherwise, anything you get will not be ready this next fall.

I would say anything that is already very light with lots of blushing/flames.

Pastel
Bee
Lesser
Butter
Enchi
Vanilla (have you seen the vanilla cream? Fire x Vanilla? ) They are about $300 right now as youngsters.