I'm looking to buy a new monitor(s) for my high spec gaming rig. The main decision is 1,2 or 3 screens. Should the screens be identical in multi setups? Is it worth having 120hz? The main usage will be gaming but I will use it for work too. Impotantly I won't be using it as my main movie screen. Is the 3008 Dell better than having 2+ screens? Is it worth having 1 120 hz with say u2410 aswell?