HEXiT :
ive used enough razer stuff to know there over priced and they under perform..
i had the lachesis and like 4/5 of em the MMB broke.
now i have the rat 7 and apart from adjustability it to is an overprice mouse.
if you can find a death adder cheap or a logitech g400 then get eather of em. dont bother with any other suggestions.
actually there is no point going got rat 7
rat5 is similar to rat 7 just with a couple less buttens (costs around £50)
rat 3 just doesnt have an adjustable palm rest (costs about £35)
personally i recently grabbed a rat5
if you can try to find a place where you can actually use them
(amazon have the cyborg 7 rat mouse on offer for £55
http://www.amazon.co.uk/Cyborg-R-A-T-7-Mouse-PC/dp/B003CP0BHM/ref=sr_1_sc_2?s=computers&ie=UTF8&qid=1334501574&sr=1-2-spell)
death adder mouse is around 50 on amazon