All depends on how far you want to go with colour accuracy. The above posted monitor is fine if you calibrate it properly and are happy for a few colour discrepancies. But for a true representation of your final output you may want to look here - click here Whichever option you go for it will be well worth you getting a decent calibrator as no matter how good the monitor is if it isn't calibrated properly you are going to get poor results.
Assuming you don't want to spend £1000 plus. Then you will find the the Samsung a very good alternative taking cost into consideration.
For my recently built PC which is used primarily for photo editing using CS4 & Lightroom I have the HP 24" widescreen. It also includeds built in calibration software that produces results equivilent to using such as a "Spyder"