How to Open a copy of the current Finder window via AppleScript

Sometimes I find myself needing to open a second copy of the current Finder window I have open. There's no default way to do this in Mac OS X, so I wrote a small script to take care of it for me:

try
 tell application "Finder"
   activate
   set this_folder to (the target of the front window) as alias
   set {x1, y1} to position of front window
   make new Finder window to this_folder
   set position of front window to {(x1 + 50), (y1 + 150)} --This offsets the new window more than the average Finder tiling does
 end tell
end try

use Butler to assign this a hot key, which then opens these copies when I need them