I'm thinking about getting two of these to flank my 24" LED, using the display port connections. I've read some on MacRumors complaining about calibration issues and such, but some were using VGA/Analog connections. Would using the display port connection make a difference? Is it a good display? It's a CCFL IPS (I'd prefer LED IPS but not many on the market) with a ton of input and output options, and hooked up to my 2008 Mac Pro's ATI Radeon HD 4870 and GT 120 cards a three display system would be perfect. Thoughts? THANKS!