What’s the difference between the XBOX 360 Pro and the XBOX 360 Elite?

I’m just wondering, what is the difference?

The Xbox 360 Pro – Its White, 20GB Memory.

The Xbox 360 Elite – Its Black, 100GB Memory And Has the Ability To Play HD Movies. Rumour Has it that That the Elite Has a Slighty Smaller Chance to Get the Red ring.
It Comes With a Black Controller and Black Headset.
And 1 Month Free Xbox Live Gold Membership
Its About $100 Dollars More than The Pro.

Hope i Helped