[ Hair ] Open Question : what should i do with my hair?

i WISH my hair could be like this http://www.youtube.com/watch?v=MxTX94zOxGY but my hair naturally is frizzy and wavy. but when i straighten it its really silky and smooth. i really want bangs like hers, but im afraid that if i get the choppy layery bangs that she has, it wont look right with my hair type. i'm afraid that in humidity, the layers would start to wave..so what should i do with my hair bc i reallly want bangs like that :/