A4Tech X-710 Gaming mouse
 

This is a very good mouse for the price. We have no idea how they came out with such a mouse at such low price. Software-wise, it's just so-so but its hardware is impressive. Not only the mouse movement is smooth, but we particularly like the fact that they had included nice touches like provided it with high quality OMRON buttons as well as flexible thin cables. Even the scroll wheel is nice. Very good feel to the fingers and when you scroll, you certainly feel solidness on that wheel. Contrary to our earlier thoughts, this is not a mouse with cheap plastic parts put together.