What's the best way to take a screen shot?

For PCs-
Pause your game with the spacebar.
Hold down the "Ctrl" (Control) button and press the "Print Scrn" button. The image is now on your computers internal clipboard.
You can use MSPaint which came with your machine to paste the image and save it for upload or another program such as Photoshop or Paint Shop Pro. You must save your image to a image site like Photobucket.com, when you upload your pic you will be given the code to use to show the pic in your forum message.

thanks.