ok back on topic assholes...
Jasper looks like they might be the first reliable 360's, worth making the effort to find.
Instructions on how to find a Jasper:
There's all kinds of indicators but the only one that seems reliable 100% of the time is the following:
The Xbox 360 Arcades have an opening in the box where you can see a barcode. To the left of that just under the cardboard is what you need.
If you look at the amperage (circled in teal).
12.1A represents a Jasper. Buy it!
if you look at your own 360 you'll find one of three readings.
16.5A is the first gen code named Xenon or Zephyr- la merde
14.2A is the second gen code named Opus or Falcon -le suck
12.1A is the new hotness
At the moment the Arcades seem to be the ones that are receiving the highest rate of Jaspers. I don't think any of the Elites have them yet and only a handful of Pros.
If you live in the US Newegg is selling Jaspers as a seperate SKU.
http://www.newegg.com/Product/Product.aspx?Item=N82E16868105013 If you want to get one from a store in person many have recommended Best Buy as they stack the consoles on the floor allowing you to sift though them and look for the right Amperage (12.1A).
They explain everything very well.
http://www.anandtech.com/gadgets/showdoc.aspx?i=3472&p=2 Added info
http://forums.xbox.com/20/25020068/ShowPost.aspx#25020068