Logitech Bluetooth Wireless Trackpad for Mac for $30 + free shipping
OutletMP3 via eBay offers the Logitech Rechargeable Bluetooth Wireless Trackpad for Mac, model no. 910-002880, for $29.98 with free shipping. That's the lowest total price we could find by $5. It features a Bluetooth range of up to 30 feet, multi-touch gestures, and integrated mechanical click.