There's currently an ongoing poll <a href="http://lifehacker.com/5218155/five-best-screen-capture-tools"> @ lifehacker.com</a> for the best screen capture tool and presently Snagit is winning.
<a href='http://img262.imageshack.us/my.php?image=lifehackerfivebestscree.jpg'><img src='http://img262.imageshack.us/img262/2649/lifehackerfivebestscree.jpg' border='0' alt='Image Hosted by ImageShack.us'/></a><br/>
Also found through lifehacker is a good alternative screen capture that's free for those of us who weren't fortunate enough to win this specific contest. The software is called <a href="http://www.fiastarta.com/PrtScr/Download.html"> PrtScr</a> and so far seems to be pretty decent choice as far a freeware goes.