Capturing a single window on Mac

I love the way screen-capture is integrated into OS X. It's another of those tasks that they have thought about and made really 'slick'.

I just found out though that capturing a single window is really, really easy too.

All you do is this:

- Command + Shift 4, then hit Space

You'll then get a nice 'Camera' icon where you can select the window (it does not even have to be in the foreground) and screen-capture will handle the grab.

Simple.