Bigbruin.com has posted a review on the Sunbeamtech Fireline and Blue Flame Optical Mice

Probably the biggest concern with mice, especially if you are a gamer, is how well they track. This is where both the Fireline and Blue Flame seemed to excel. Due to the 800 dpi engine, both mice tracked flawlessly. I used both mice in several first person shooter games such as Counter Strike, Unreal Tournament 2004, and Far Cry, and never once experienced any tracking issues of any kind. Movement was very precise and accurate with both mice.

Sunbeamtech Fireline and Blue Flame Optical Mice