Here are some sites to help you not suck at being an art director/ designer. (Like the joker who did this --->)

Having great ideas is only half of the equation. Knowing how to execute them is key. (If you're a copywriter and don't ever want to be stuck looking for/waiting for an art director, feel free to teach yourself how to be awesomer too.)

Abduzeedo Tutorials

10 Websites To Make You A Photoshop Ninja

Get to work.