How to take a screenshot of desktop?

So, on a PC I know I have to hit Print Screen and than paste it in PAINT. Anything like that on MAC? How would I take a pic of the desktop and what program would I use to paste it?

Thanks

I searched the forums and found this:

http://www.mac-forums.com/forums/os...eenshot-method.html?highlight=mac+screenshots

Thank you.

Awesome, thanks guys Darn, its A LOT easier than XP after all.