This is awesome... even if you already have a smartboard in your classroom, you could try this at home. It took a minute for my husband to do it with a wiimote and a regular tv remote control (which gives off the infrared light, since we didn't buy an infrared pen yet). Incredibly easy, cheap touch-screen solution. (I do not have a smartboard in my classroom so I might buying a wii-mote and a infrared pen (about $50 altogether to make one myself.)
Browse TED.com, there are so many interesting videos. How about math and some intense origami? Great for in the classroom or just for us to keep ourselves learning.