I'm addicted to the Gold Box values on Amazon - where each day they have an amazing deal. I recently got the complete series of Buffy the Vampire Slayer for only $99.99!!! You sort of have to act quickly because a lot of the deals sell out really fast.
Today's deal is Arrested Development - The Complete Series (all 3 seasons) for only $29.99! If you're a fan of this funny series or know someone who is, this would be a great gift.
Update: All sold out