Visit this website: kuler.adobe.com to get to use their color chart suggestions for color combinations. Again this was shared in a session at the garage seminar in Singapore. Browse, search, and modify Kuler color themes directly in your CS4 application. Include them in your workflow by using the Swatches panel.
View their demo on http://tv.adobe.com/watch/learn-flash-professional-cs4/using-kuler-color-themes