I actually split it down the middle – I have a new APPLE 23″ and a new DELL 24″ 2408WFP which has every connection slot including HDMI which I hook up via BlackMagic Intensity Pro card no back of Mac Pro…
Warning however, this set up caused me 1 week of start up problems, 30% of the time, the screens on boot up would freeze with a Black and white staircase effect and I spent days on the phone with both Apple and Dell and my reseller, who came out, swapped RAM, played with BlackMagic Card, put it all back, then simply swapped the DELL connection to the slot on the right and the APPLE on the left slot on back of my Mac Pro/nVidia 8800 card and that did it – this above set up must have the DELL plugged in the right slot, the APPLE in the left slot…I’m happy with this set up now.
K