DVD Planet is offering buy one, get one free on select Fox Titles. There are tons of titles to pick from and I think all of them are boxed sets. And there are no strings attached or anything.
I bought the Family Fun Pack (Sound of Music, Dr. Doolittle 1 and 2, BIG, Mrs. Doubtfire and The Man From Snowy River) and Tru Calling for $55.83. But you can use Google Checkout, which saves you $10. So I got two DVD sets for $45.83. I am selling both of them on Amazon, so I'll make $33.25 from this deal (if they sell).