I would ask you to stay away from those expensive pieces (unless of course You've money simply lying around and boring you).. I'd recommend the logitech MX 518.. It may be old and optical but i still am looking for a reason to upgrade to anything over it from the past 5 years.. Its logitech so no compromise on design and build quality, its precise and agile, fits perfectly on to the palm and has perfect weight.. The pricing just makes it even more sweeter.. All in all, Its true to its slogan, ' OF THE GAMER, BY THE GAMER, FOR THE GAMER'..
P.S. - If you are looking something with laser tech then take a look at the cooler master sentinal advance gaming mouse..