Logitech Precision controller for $10, you have to buy it by today and submit a $20 mail-in rebate by the end of January. This deal effectively ends at the last second of the year.
Even without the $20 MIR, you'd still be getting the controller for $10 off its listed price of $40, so we'd say this is a pretty darn good deal either way.
So if you opened up a shiny new PS3 this Christmas but need an extra controller or two, you can't really get a better deal than this. You just better hop on it before it's too late!