Inside Mac Games has posted a review of the Microsoft IntelliMouse Optical. Written by IMG's Hardware Editor, Lucian Fong, the mouse gets high marks for its style and extensive features.
The appearance and ergonomics of the refreshed IntelliMouse Optical are identical to its predecessor. The symmetrical shell is a creamy white color with metallic gray accents on the side buttons and scroll wheel recess. Translucent red plastics cover the bottom of the mouse with oval teflon pads on each of the four "corners". And like all of Microsoft's optical mice, it emits a red glow while in use.
The overall shape of the IntelliMouse Optical is not as ergonomic as Logitech's MouseMan Dual Optical (my current favorite mouse), but sloped gently on the ends. Although my hands are relatively small, I prefer the larger Dual Optical in this case because it provides better palm support.
If you've been looking for a new optical mouse, be sure to check out the review.