Summary: One of the best mice i've ever owned. It does get dirty and wears down over time and there are better mice today (2014 ,better feel, more responsive, better material) but in the MX-510's hayday there were no better mouse around.
Summary: The MX510 is the best wired mouse I have ever used, but unfortunately it has been discontinued. It has 8 programmable buttons and is Windows and Mac OS X compatible right out of the box. The MX518 is mechanically identical, however you have to purchase a 3rd party program to use it on a Mac.
Summary: What can I say? I love this mouse so much that I have never considered getting another kind since I discovered these guys. From my earlier days of gaming to this day I have used this mouse. Its classy looking and simple with having all the useful buttons that you need.
Summary: Most likely you won't be able to get a hold of this puppy anymore, or if you do it'll be used, but I wanted to write this review as sort of an homage. This was the first higher quality / gaming mouse I ever bought, and I have not bought another gaming mouse since.