Dealsonic has the Logitech Cordless Optical TrackMan (904369-0403), OEM, for only $32.99! $4.95 Shipping. PN# DSLOGCOTK904369. This retail packages usually sells for around $50 shipped, this is also brand new and comes with 1 year warranty. Just search for DSLOGCOTK904369. LOGITECH CORDLESS OPTICAL TRACKMAN