yup mice can be a pain in the arse to find the right one, i was lucky as it only took me a couple to find the best for me.
first went for the logitech g500 but that was too high n hurt my wrist, then the rat which was near enough perfect but not quite high enough lol. now i have an mmo7 and that is the mutz nutz
keyboards though is a whole different story, ive had 6 different gaming keyboards in the last 2 years.
logitech g110 nice but not quite there,
g19 very nice but didnt use the screen
roccat isku keys stopped working after 3 wks
razor lycosa keys sticking constantly
cyborg v7 ugly as hell but nice to use
then a quickfire pro which i love
my mrs thinks im mad
gotta get what you like enit