This article gives a simple summary of what I've read for the hot colors for 2010. Lavendar, bluesy reds, earth tones, clear and yellow-greens, and aqua. Gray has been declared the official neutral.
Don't take my word for it. Read it all here.
And see this article at the end for the top colors from Benjamin Moore for 2010. (Print it out and take it to the paint store with you!)