I guess I'm just wordy today, but I couldn't wait to post this link I got from Margie Deeb's blog. It's an on-line color palette design tool. I have no idea how it works, but I can't wait to have time to play around with it. If you're color-challenged like me, it's got to be worth a look-see.
Margie's blog and books on color are a real help also. I have both of the books and can highly recommend them if you're looking for help with color...or just inspiration.