I've got an Eizo, had it for about a year, and it would have paid for itself 10 times over in time saved but not having to redo prints.
HOWEVER---- it's still going to be only just another monitor unless you buy yourself a monitor calibrator as well.
I use the i1 display2(pronounced eye-one), it's easy to use and does a good job.
Not sure what your budget is like, but my 19" Eizo cost about $1000 a year ago, and the calibrator costs about $250.00 now.
If your budget is limited, I'd suggest getting the calibration tool first, and then the Eizo when you can afford it, otherwise you really will be wasting your money, 'cause if your screen is off-colour, doesn't matter how good it is, it's still off-colour.

Just did an ebay search, found an i1 here if you're interested.

http://cgi.ebay.com.au/X-Rite-Eye-On...item35a75c81a4