Razer Mouse

Looking at a new mouse for my Mac.Spotted on the Razer site,the Death Adder.Forget the name,but it seems this is a 5 programmble mouse with USB connection but i have never come accross this company before. I need a mouse that has more than 2 clicks and a scroll ball as i already have a Mighty Mouse.Does anybody know this company?I'm based in the UK,but it seems that if i'm in Europe, i carn't purchase direct.