Buy.com offers the Logitech Wireless Desktop MK320 Keyboard and Mouse Combo, model no. 920-002836, for $21.99 with free shipping. That’s $2 under our June mention and the lowest total price we could find by $3. The keyboard features 121 low-profile keys, an integrated number pad, and media-centric keys; it uses two AA batteries. The mouse features two buttons and a scroll wheel; it uses a single AAA battery. Batteries are included.