If you haven't taken a peek at their annual sale I highly recommend it! Even if you don't home school you may find some treasures for cheap.
Go to CurrClick. Make sure you have some tea/coffee with you, some pleasant music in the background, and enjoy browsing through their sale pages... all 200+! I got a bunch of goodies and am so excited about what we are doing this year. We'll never use all I got in one year, but I'll roll over the surplus for next year.