The Mobile Memory Mouse 8000 may cost more than you'd expect to pay for a computer mouse at $99.95, but wait until you hear what it's capable of. It incorporates 1 GB of flash memory right into the transceiver! That way, you can free up a USB port and easily transfer your files. This rechargeable mouse also features 2.4 GHz wireless technology, 4-way scrolling, Magnifier (enlarge and edit detail), Flip 3D (flip through all open windows), Instant Viewer (instantly display your open windows), and a Bluetooth mode switch. To charge the mouse, simply snap in the magnetic connectors using the USB transreceiver. Unfortunately, it's only made for right-handers. It will ship in October, but is available for pre-order now.

Check out more on the other two computer mice from Microsoft, as well as photos, after the jump.

The Wireless Notebook Laser Mouse 7000 ($49.95) is an ergonomic 2.4 GHz wireless mouse that features 4-way scrolling as well as Flip 3D, Magnifier, LED battery indicator, and a 6+ months battery life. It can be comfortably worn in either hand, and is available now.

The Bluetooth Notebook Mouse 5000 ($49.95) is great for the traveling professional. This Bluetooth-enabled mouse features an ergonomic design, back button (navigate between folders and Web pages), LED battery indicator, scroll wheel, on/off button (to preserve battery life), and is transreceiver free since it works with a Bluetooth-enabled notebook. Shipping in October, it's available now for pre-order.