Just got a new gaming mouse, the above mentioned razer one. This is the most comfortable mouse i've used in my life. not available in india i think, so i got it from germany. the glowing scroll wheel and pulsating guildwars logo are a beauty, can be turned off from drivers. The mouse tracks well on any surface, is extremely quick and ultra precise and suited for those with larger hands. there are a total of 5 independently programmable buttons and 5 profiles to switch to. there is a button at the bottom to change profiles on the fly, but difficult to know which profile is active, as sometimes, it doesn't flash to indicate the active profile. it has a 3g infrred sensor with 1800 dpi resolution. found no flaws with it. Got it for 70 euro=4500 rs. and is definitely worth it.