Start by identifying your mouse grip[0]. That is the starting point for choosing a mouse. Unfortunately, if you prefer a claw or fingertip grip the only mice available are gaming mice, which may have "flashier" decorations. Claw and Fingertip mice are usually shorter and wider.

I mostly use a fingertip grip, changing unconsciously to claw when playing more action oriented videogames. At work I have a CM Storm Xornet[1], with the recommended CM cloth mousepad (Small size). At home I have a CM Storm Spawn[2], with the same mousepad but in Medium size.

Personally, I prefer my work setup. The Spawn has stickier rubber (which I dislike), and the mousewheel stops working ar random. The small mousepad is perfect for my needs. due to my grip I have high sensitivity in the mouse and my arm doesn't move a lot (or at all)

[0] http://cmu.coolermaster.com/mice-grips/ [1] http://gaming.coolermaster.com/en/products/mice/xornet/ [2] http://gaming.coolermaster.com/en/products/mice/spawn/