Try a little Mischief.
Mouse Mischief integrates into Microsoft PowerPoint 2010 and Microsoft Office PowerPoint 2007, letting you insert questions, polls, and drawing activity slides into your lessons.
Students can actively participate in these lessons by using their own mice to click, circle, cross out, or draw answers on the screen.
To download Mouse Mischief, view online How To/Help videos, and to learn more about this program visit http://www.microsoft.com/multipoint/mouse-mischief/en-us/default.aspx