Today Tokina introduced new mail-in rebates for some of their lenses:

AT-X 100mm Macro: $30 rebate

AT-X 10-17mm AF DX Fisheye: $40.00 rebate

AT-X 10-17mm AF DX Fisheye NH: $40.00 rebate

AT-X 16-28mm PRO FX: $50.00 rebate

AT-X 17-35mm PRO FX: $40.00 rebate

AT-X 11-16mm PRO DX-II: $40.00 rebate