To any gamer, the mouse is one of the most important parts of the set up and the difference between them can be huge. The same mouse can be loved by some, and despised by others - so it can take a few goes to find one that really works for you. Like keyboards there is such a large variety that choosing a style you like should be simple. If you want a completely matching look, consider a keyboard and mouse combo too. Oh, and don't forget the mouse mat to really help get the best performance.