Nevermind, I found it. Thanks dude!
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SPB is located here:
http://www.spbsoftwarehouse.com/
The 50% off coupon is the bright green Christmas present looking coupon on the right side... you'll see it... it has the big red bow on it and says "50% OFF HOLIDAY SALE"
The coupon details are:
Dear SPB Customer,
Tank you for using our products in the year 2009. We want to wish you very happy holidays and give you a 50% discount across our entire product line.
The SPB Holiday Sale runs from December 17th till December 30th at the developer's official website.
.... you need to enter the "SPBHolidayDiscount" discount code in your shopping cart....
To see it in youtube, click here:
http://www.youtube.com/watch?v=WmvDr7wAPFQ