Styled radio buttons (jquery?)
Something like this?
I think what they've done is just hidden the actual radio buttons on the page, replacing them with fancy looking icons, images and text. Clicking these elements forces the radio buttons to change behind the scenes.
There's all kinds of them:
http://www.chriserwin.com/scripts/crir/index.php
I wrote a tutorial about how to create customized radio buttons with CSS only. Basically you hide the radio button itself and style its label how you want, it is pretty easy. Maybe this helps :)