playing with iMac webcam

My laptop (a mac ibook) started to act up a couple of weeks ago and after my brother looked at it and after talking about it with another computer person, I decided that it wasn't worth repairing it and bought an iMac. It has a webcam already attached. While I'm waiting on hold with Verizon Rebates (I may blog about this when I get this flippin' issue dealt with), I wanted to figure out how to use it. I can take pictures using certain visual effects. Here's a couple of examples:

This is the popart effect:


This is the sepia effect:


Cool, huh? My son is going to love this!