The Manhattan Stealth Touch Mouse is a very stylish mouse suitable for left- and right-handed people. It has no physical buttons whatsoever. You do hear a click when you nudge the area where traditionally the left or right mouse button is situated. The fact that it's wireless and small makes it best suited for on-the-go use with a laptop. The PowerPoint slide feature is a practical extra feature as well.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips