Also, dont go just for expensive mouses. One of my first mouses were cheap one called "Aula ogre soul" which costed about 10€. After i showed it to my friends, almost all of them bought one for themselves, althought they were using more know maker mouses from razor, steelseries, logitech which costed 5-8times more. This mouse was comfortable and had nice weight. So like i said before, you should go to any shop that allows costumers to test them. If you liked something, just go home and order it from amazon, original makers website or whever you buy them from.