I prefer Screen Hunter for screen shots. Screen hunter allows you to change the settings to capture a selected area, the selected window or the whole screen. I use the whole screen when using maximixed WoW, the selected window for most other screen shots, and the selected area when copying diagrams from online text books for my notes (which go straight into my MS OneNote). You can set where you want the screen shots to be saved, how you want the date formatted for the file names and what file format you want the screen shots saved as. It's straight forward and easy to use as well. Best of all, it's free.

http://www.download.com/ScreenHunter...html?tag=mncol