Amazon offers the Corsair Vengeance K60 FPS Mechanical Gaming Keyboard (CH-9000004-NA) for $89.99 plus free shipping. You save $20 off the retail list price. This is the lowest price we could find currently and pay no tax in most states.

The Corsair Vengeance K60 FPS Mechanical Gaming Keyboard features Cherry MX Red Mechanical key switches, Full Key Matrix Anti-Ghosting, comes with ten additional sculpted FPS keys (W,A,S,D and 1 to 6) that are interchangeable with the standard keyboard keys, 20 Key Roll-over (20KRO) on USB and more.