Gaming in 3D have a review of the Logitech Mouseman Dual Optical Mouse.
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"Optical mice are becoming the standard mouse upgrade these days. Mice last longer with optical technology, as they don't have mechanical wheels that get dirty. Another benefit of optical mice is that they scan the mousing surface more often than ball mice. Combine this with a fast USB connection, and you end up with very fluid mouse cursor movement on your screen. Unfortunately, not is all peaches and cream in the land of optical."
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