Try this link and see if it will pull up the coupon. There is a 40 percent coupon at the bottom. Should be a "print coupon" at the top or near the top.
If you want to get coupons regularly, just go to their web site and sign up on the mailing list and they will send them to your house on a little flyer with all their sales.
I always do a online search for coupon codes when I shop online. You will be amazed at the deals you find! Last year I saved an extra $750 on my dell notebook just by doing a search.