If it was naturally straight, I'd learn to live with it. I've always thought I look better with long hair, so I'd probably just keep it in long layers and add some sort of volumizing product to it so it wouldn't be so flat.
Products I Am Currently Using...
Co-wash: L'Oreal Evercreme Cleansing Conditioner
Rinse out: Whatever Vo5 I have on hand
Deep Conditioner: L'Oreal Evercreme Deep Nourishing Masque
Low-Poo: Pure Curls Clarifying Shampoo
Stylers: Curl Junkie Pattern Pusha, LA Looks Cashmere Curls
Biotin Supplement: Puritan's Pride Hair, Skin, & Nails Formula
Rock your curls!