DJ ive not had any probs with response time in battlefied 4, most settings are on high, no aa, or any other game, if i feel a game is struggling then i just drop some settings down.
The dells only have hdmi and displayport connections, My understanding is that the newer AMD cards do not rely on adapters anymore, so if i change to say maybe a 290x that has dvi dual x2 out, 1 displayport, 1 hdmi, i can simply connect dvi to displayport, displayport to displayport, or hdmi to displayport.
Nice one buddy, I think I might have to get myself some of these then. Just out of interest what cables are you using to connect to all 3 monitors, and are you using any adaptors. It's the 7970 Matrix has 4 full size display ports so I assumed you'd just use a displayport to displayport cable???

Ah right that's because of the DVI Dual link or something isn't it. Cheers buddy, I'll have to start looking at prices for these monitors now 