Gamestop will be taking your old Xbox 360s and original Xbox units in trade, anticipating your desire to buy the new Xbox 360 Elite. During this special, you will be able to get $250 for the premium unit, and $200 for the 360 core unit, but the cool news is that you will even be able to get $50 for your original Xbox, deferring some of the cost to make the leap to the next generation.
This is really a cool deal, and it shows that Microsoft is either sensitive to the idea that they're going to anger a lot of people who just sunk a lot of money into the premium unit, or that they've been watching the forums of the gaming community, who are pretty pissed off about the whole thing. MS certainly must realize that they've got a lot of goodwill at the moment, and wouldn't want to squander it.
XBox 360 Rally: CONFIRMED: Xbox 360 Trade-In Deal!