for a cheap mouse I would suggest getting a basic logitech. They are simple, elegant, have your requirement of a wheel that 'clicks' when scrolling, and no matter how many times I have dropped it on the cold hard basement floor it just keeps on working! Only thing better would be a rat, or one of those other high end mice.
Mine is an old version like this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16826104361
I could not fine the black/grey version like mine, but then again I bought mine like 7 years ago. Only complaint is the but ugly receiver it came with, but the new ones all have micro receivers so that wont be a problem.
I also LOVE these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16826104407
but they are hard to find, and no good for gaming. The 2 I had did not last as long as their regular mice (one was run over by a car in college lol, it's replacement only lasted 6 months and mysteriously stopped working), but they felt great and it was nice being able to place my hands anywhere and not have to move around as much.