This deal has ended.
Office Depot has the Microsoft Wireless Optical Desktop 3000 for $34.99 (through 2/3) before this $20 mail-in rebate valid through 3/31 cuts it to $14.99. The "desktop" includes an ergonomic wireless keyboard with programmable keys, optical mouse and wireless transmitter. Delivery is free if you spend $50 (otherwise around $8) and in-store pickup is free, as well. The before-rebate $35 is good just by itself, as most stores sell this for $50.