I have fairly short, fine hair, not frizzy at all...more of a tendency to go flat than anything. I'd like to either curl it under or flip it out, but using a curling iron looks a little too poofy in both cases. I'm not too skilled with a round brush and a hair dryer, so I was looking for another option. Would you recommend getting a hair dryer with a round brush attachment, or one of those hot air brushes (looks like a curling iron but it's a round brush instead)? I wasn't sure if one or the other would be better for my hair. Any ideas?