The Pen Tool:The pen tool is the tool in the tool box that lets you basically draw, but much more precise. If you want to cut a stock out from the background, use the pen tool and slowly mark around the stock until you have an outline. Right click the last marker and select "make selection as" and make sure anti-alias is on, and make the feathering 0.5 pixels. once you do that, it will now become a selection, and if you click select>inverse at the top of the screen, it will select the background of your picture. hit the delete button, and the background is gone, but your sig is there, because you made the outline with the pen tool ^.^.
Pen tool step 1:
http://i36.photobucket.com/albums/e2...9/pentool1.jpg
Pen tool step 2:
http://i36.photobucket.com/albums/e2...9/pentool2.jpg
Pen tool step 3:
http://i36.photobucket.com/albums/e2...9/pentool3.jpg