Directions:
Click this link. Gives you 10% off entire first order at
www.overstock.com
http://www.techbargains.com/cjump.cfm?afsrc=1&id=233
Add Xbox 360 Premium System and Gears of War to the order. Add one more "non-gaming" item to make the discount work (add something that's like 5 bucks).
Enjoy 360 Premium and Gears of War for $410.
Or, enjoy 360 Core and GoW for $315
That's what I did. I did it way back when it was 15% off first order, and got my Xbox 360 Premium with Gears of War for $390