Statto has an article on his blog about using his digital camera to take infared pictures which is worth a look, if you're even vaugely interested/bored/geeky/a physicist/all of the above. He's taken some fascinating pictures of infared remote control beams and things through filters, and provided a little bit of an informative background as to why it all looks like it does, too. Go look.
Glad you enjoyed it!