Also calling Josh Freese just "NIN's drummer" is not very accurate. Freese did play with them on occasion, including the recent amazing Lights in the Sky tour, he is still one of the most accomplished studio drummers in the business. The man is a drumming machine and is extremely famous in his own right. (http://en.wikipedia.org/wiki/Josh_Freese)

Dave Groll played drums on most of the tracks on With Teeth. The "keyboard" for NIN's drum programming is mostly Battery from Native Instruments (where I worked before founding Directed Edge).