Completely agree with that one! I've turned away from many sites because of that. I think I read once that most internet users have an attention span of about 3 seconds when using a search engine. If a site in the SERPS does not offer what they want, and obviously within 3 seconds, they click back and try elsewhere.
Re: colours - thanks Essex-boy. The art site sounds hideous! But if it works, it's a beautiful thing!