This is really the reason I wanted Photoshop...just to put captions in the kids' mouths and draw moustaches on them.
I've been playing around a little and it's so frustrating. I remember bits and pieces of how to do things, but there's too many gaps to really see anything all the way through. My "how to" book (A Scott Kelby book, thanks for recommending him Jen!) should be here in a couple of days. Until then you may be getting more doodles on pictures!