There are dozens of threads on this topic already, so a search is probably worthwhile. That said, I think there are three to consider -- the Dell, the NEC and the Eizo. The Dell and the NEC are half the price of the Eizo. The NEC Spectraview comes with software and puck and gets a lot of good reviews -- and it's definitely the one you want to get, because the software is necessary to drive the LUT built into the monitor. It's what I chose because it was a good compromise for price and performance (I could buy a pair of them for less than what a single Eizo would have cost me). I am happy with it.
And yes, editing on a wide-gamut monitor does help with proof views when printing on a wide-gamut printer, but you will need to use proof view to edit! In fact, it's why I mentioned two 30" monitors earlier --- in an ideal workspace, I would have THREE monitors: 1 smaller one (I use an inexpensive ACER 24" 1080P) oriented vertically for menus off to the right, the main 30" editing monitor center, and then a matching 30" on the left to hold my reference image. I don't have the second 30" yet, but I want it when I redo my studio. I guess that makes me a monitor slut, but so be it