Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
epepper9 said:
Tinkertool has an option for this. (I think...)
Nah, tinkertool only has the option to change the format.

Honestly, your best shot at doing this is making an automator workflow (its easy to do) and sepcify a folder. IF you need help, PM me.
 
here's a PM I sent detailing the process if anyone else is interested.



this is the easiest workflow to produce

open automator (duh)
click on SYSTEM in the library list
Drag TAKE SCREENSHOT to the right hand panel
Select weather you want the FULL SCREEN or INTERACTIVE
In the SAVE TO dialog box, there is CLIPBOARD, NEW, and OTHER. Select a folder to save to.
then hit run.

Open the folder that you have selected to save all screenshots to, to see if all went okay.

If so, then go to FILE, SAVE AS PLUGIN...
Select FINDER.

Now, whenever you right click, it will be in the AUTOMATOR section of the contextual menu.

Repeat this process to make another workflow to capture the opposite (fullscreen or interactive) of what you just did, so now you have two options under the contextual menu to choose from.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.