Yes we are one of the few online retailers that have stock on coupon eligable converter boxes, and have a coupon entry form during checkout.
These are the three boxes we currently have in stock:
Artec T3A
Tivax STB-T9
Philco TB100HH9
After you add one of these receives to your cart, go to Checkout. During the check out process you will be asked for your name and addres, after that step you will be taken to a Coupon Entry screen where you can get your 40 dollars off before you enter your credit card.
-Mike