When I try to apply LDNWWH4 I get the free shipping but not 10%, good thing there's another code that works on all games used or new and it works.
Coupon FEB10OFF - Receive 10% off any in-stock new or used game. May not be combined with other offers. Online only offer. Expires 2/28/2010 11:59PM
This of course means new Darksiders for for $36 shipped.