I dunno if this will work on the xbox 360, but it did work on my ps3 slim wich gets very hot.

I simply put my ps3 on a grilled/vented metal surface and it stayed very cool.

When I touched my ps3 after hours of gaming there was almost no difference between the room temperture and the ps3 itself, wich isnt noticably hot.

I hope this works for 360 owners as well. And I also hope someone will read this.

(sorry for bad english)