mwave once again has the
Microsoft PS2/USB Optical Mouse for $2.99 + FS with Coupon Code "MSMICE01" (Expires 9/12/2010 or after 1000 uses) for mclub members (free to join)
Description:
Microsoft Optical Technology replaces the old-fashioned mouse ball and works on virtually any surface. Easy and comfortable to use, Basic Optical Mouse is a good choice for value.
Now you can experience the benefits of the world's most powerful optical technology. The Microsoft optical sensor replaces your old-fashioned mouse ball. The ambidextrous design is comfortable whether you mouse with your left or right hand.
Features:
# Connectivity - USB&PS2
# Cable Adapter - PS/2
# Button Count - 3 Buttons
Microsoft PS2/USB Optical Mouse $2.99 + FS @ mwave 
