(Sorry Taylor and Renata!)

I'm in desperate need of a trim and I'm keen to hear some ideas. This is my hair.

http://i962.photobucket.com/al.....G_0288.jpg
http://i962.photobucket.com/al.....rdress.jpg
http://i962.photobucket.com/al.....cfront.jpg

It seems to sit well at the back but I really don't like the sides. It seems like it really only has one layer. My hair is quite fine and I have had a lot of hair loss recently post-partum. My criteria is that I want to keep it longish and it needs to be easy care. I tend to wear it tied back in a ponytail mostly out of the way of my babies curious fingers! I was wondering how I would go using a straightener. Or is that high maintenance? I was wondering if I could just blow it dry and then run the straightener through the top bit that tend to go fluffy?

Thanks