A picture I took (with my shoddy, but free, camera) of a butterfly on a marigold in my garden. Took it last year sometime during the summer. At first I thought someone put a lawn ornament in my garden (like one of those metal stakes with a design on it)... Next think I know, I'm holding my breath at the fact that it was alive. Gasp!

Even if the picture is a little blurry, it was a damned good moment (it also prints well)