Not that this opinion really means anything in the grand scheme of things, it's your hair, but I personally think you should keep your hair long.
I'm in the same boat with RozettaStone. Dang, girlies, I am so on the fence about whether or not to cut my hair short! Innyhoo, when my hair was just below shoulder length I was able to do a modified pin-back/scarf style by putting my hair in a messy bun and then arranging and pinning the loose curls around it on the back of my head. I let a few curls hang down in the front, then tied and pinned the scarf. (and if my stupid browser would work, I could add a link to a picture. Sheesh.)
Edit: Fotki won't load for me for some reason, but I think there is an example of this style in my "starting CG" album.
I would kill [okay, that's a bit strong.] to have your hair. It's gorgeous and I want long, pretty curls.