I have naturally dark brown hair (I've finally gotten it pretty close to it's natural color!) and it's very straight, but there's a lot of it. I have an angled bob that is stacked in the back.
I use Aveda's Color Conserve shampoo and conditioner. Every few shampoos I use the Color Conserve Strengthening Treatment in place of the conditioner. It's like a really rich protein treatment. Once a week, I use the Loreal Preference Color Saving Conditioner that came with my haircolor kit...I buy the kit just for this conditioner! lol It makes my hair super glossy and has a UV filter. I use it in place of my regular conditioner once a week.
I let my hair air dry for about 15 minutes, then I use Aveda Color Conserve Sun Protector. It's a foam that has a UV filter that keeps your hair color from fading. It's also very volumizing.
Then, I just dry it on medium heat with my Conair Ion Shine hairdryer (the white one), with a medium round brush.
Since my hair is stick straight, I don't have to straighten it at all, so I just use some hairspray to scrunch up the back and keep the fly-aways down.