G500 all the way.. I have been using it for 2.5 years now and its an awesome mouse. The thumb buttons are very useful. Also, the scroll wheel not only scrolls and presses, but also goes left and right, which is very cool as it gives you extra 2 programmable buttons. So, usable buttons are 2(LC + RC), 1 middle key stroke, 3 thumb buttons + 2 left right motions of mouse wheel. And if one is anal enough and dont need to change DPI in game, then they are 2 extra buttons.
One warning though, my left click button started double clicking about a year ago and the right mouse button works intermittently from about the same time. I havent got any chance to approach a warranty center for this, but I guess Logitech's warranty is all right in India, so that should not be a problem for you...
One warning though, my left click button started double clicking about a year ago and the right mouse button works intermittently from about the same time. I havent got any chance to approach a warranty center for this, but I guess Logitech's warranty is all right in India, so that should not be a problem for you...