I have a U2711 monitor (connected to my PC) and have tried plugging my rMBP laptop into it. I have experience with the U2711.
Theoretically, the graphics card could drive the two U2711 monitors, but in practice I'm not sure how. One monitor you either need:
1. Mini-DisplayPort to DisplayPort cable.
or
2. Mini-DisplayPort to dual-link DVI adapter plus dual-link DVI cable.
That should be able to drive the full resolution of the display.
But the second monitor, that's where you could have trouble. I tried plugging in an HDMI cable from the HDMI port of the laptop to the monitor HDMI port. That only got me 1920x1080 resolution, not full native resolution. I did some research online but couldn't determine if that was the fault of my cable or if the monitor only presents itself as a 1920x1080 monitor over HDMI. I did not read any comments that said someone with a U2711 got a resolution over 1080p with HDMI, so I'm not sure if it's even possible.
Assuming it's an issue with the monitor and HDMI, then the other alternative is an HDMI-to-dual link DVI adapter from the Mac. I'm not sure if those exist or not. Then you'd have dual-link DVI into the monitor which can drive the full resolution.
