Some rebate info here:
http://www.the-digital-picture.com/N...d-Lens-Rebates
$80 off the 100mm macro is interesting. I had a set of close-up filters for my old AT-1 setup and shot some very cool macro images.
Disclaimer: I see nothing on Amazon or B&W about rebates for these lenses. But like the site above says, they haven't been announced yet.