Browsing through aviation magazines at the local bookstore I came across a couple of interesting products in the advertisement section (I think it was the english pilot magazine).
It receives signals from transponders just like the ATC radar systems do, and displays the data on your computer screen.
It looks like one of those toys that cause you to stop eating... that's not so bad, but it could seriously interfere with important daily FS activities
I wonder how much they cost...
I think they cost around $800 NZD, which is around $400 USD (I think).
Double that and add a little more. They retail in UK for £499.99 approx $873.