So i currently have the rather popular Logitech mx518 it has serve me well for about 3 years now but it has had an intermittent problem of the left mouse button sticking causing it to not register and provide an extra clicking noise which is rather frustrating as you think you have clicked but havent. I never sent it in for repair as it was intermittent and only happened once every 2 weeks or so. So im now looking for a new mouse budget of £60 and it will get a lot of heavy use for web browsing , Rts gaming and minecraft XD