The MacSanta promotion is back again this year. Basically a number of Mac developers are offering a 20% discount on their products for one day with the coupon code MACSANTA07. The products available change each day, but have included first class applications from the likes of Rogue Amoeba and others. If you miss a Featured Deals, they have some Extended Deals available through December, though the discount is only 10%. So if you like Mac deals keep an eye on MacSanta until Christmas; they even have an RSS feed to make it easy.