I'm going to start out with two banners for now: One for RAW and one for Smackdown.
Last Request: First request
Details: Red and black background for RAW and Blue for Smackdown. As for the size, I've always liked 450 (width) x 200 (height) and that is for both banners.
Pics: Triple H (left), Batista (center), Randy Orton (right) with this RAW logo: http://upload.wikimedia.org/wikipedi.../MNrawlogo.jpg
The Undertaker, John Cena and Kurt Angle with this Smackdown logo:
Preferred Artist: Anyone