I have very short hair and bangs --- but my hair gets frizzy and the bangs curl up into little corkscrews --- which i HATE. Want to buy a flat iron to straighten the top and the bangs. Does anyone know much about flat irons? Hairdresser said to get one with a small barrel since my hair is short. I've seen them at much as $99 and as little as $15. Of course I don't want an expensive one. Any info woud be appreciated.