Thomas,
I have one of these (Dell 2209WA) and find it to be quite accurate when combined with Monitor & Printer profiling. I run a standard Spyder2 puck along with ColorEyes Display Pro software, it craps all over the standard Spyder software and can be customised to get the best results from your screen. This combined with a good Printer Profile for the paper type you are using give great results. Just remember that no print will look exactly the same as the screen for obvious reasons, but they are damn close.
Mick