Can I also add a few:
Join the Faulkes Telescope Project (live remote control of 2-metre instruments in Hawaii and Australia; http://faulkes-telescope.com) and/or use the educational resources on the FT Moodle (http://resources.faulkes-telescope.com/) – all free!
Use the “Down to Earth” project Impact Calculator software to look ath effects of asteroid and comet impacts (http://down2earth.eu)
Try producing colour images using free software like SalsaJ or GimpShop, with raw data from FT, NSO or Bradford, e.g. http://resources.faulkes-telescope.com/course/category.php?id=16)
Book a Starlab mobile planetarium