Roccat's Kone Pure Owl-Eye can be considered a revamped Kone Optical or Military, using an updated PixArt 3361 sensor and more compact dimensions. This $70 mouse is also lighter and delivers outstanding precision and tracking performance. The mouse wheel is probably the best we ever used, both for scrolling and clicking.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips