I recently got a wired Logitech "click less" "hyper fast scrolling" mouse that I love. There is a button on top that toggles the scroll wheel to the normal "click" to "clickless." In clickless mode you can "flip" the scroll wheel (give it good little flick or pull with tip of finger) and scrolling will keep rolling in proportion to your "shove." It's very nice for "hyper fast" scrolling thru the CM and other long scrollable lists (pick lists, etc). Just click a button and it's back to a "normal" mouse. I little pricey but I love it. Two extra buttons on the side for custom functions.
The scroll wheel also tilts from side to side. I set mine for panning the camera left and right and other left and right arrow key functions.
I own a less optioned out Logitech cordless mouse than the one 1611mac has and I have to say it's great. I could never go back to using a corded cheapie generic mouse simply because the Logitech mouse is just so precise and works so well.
If you are going to spend more than a few dollars, go for a gaming mouse. The durability is well worth the cost. The left mouse buttons wears out very quickly on ordinary mice. The Logitech Anywhere 2s mouse is fantastic if you have a laptop.