Ahh, I remember moving from my 19" Iiyama Vision Master about six years ago (it died

).
In all honesty I was incredibly disappointed with the LCD displays I tried out at first. I was a keen gamer so went with the low input lag, high pixel response/low motion blur options. I sent the first two back thinking there was something wrong with them. "This isn't fast pixel response," I thought. "I can see ghosting and tearing when I strafe, and dragging the screen in RTS/action RPGs makes it go all blurry."
I finally settled on a screen I liked, but by that time I'd had to accept that moving from CRT I was going to have to get used to blur and ghosting. I also spent an age calibrating the colours until I was reasonably satisfied.
To be honest, I mostly got used to these issue, and enjoyed my monitor for the small desk footprint, easier-on-the-eyes display, and larger screen real estate (22" vs 19" on my old Iiyama).
The point is... you will probably notice some things you don't like about the newer displays, but I know now having recently got a new 24" 1080p monitor that the tech is a lot better than it was in 2008.
You'll not get a monitor that has perfect colours
and strong contrast
and good uniformity and viewing angles
and extremely low motion blur and input lag. You can certainly get monitors that have superb colours and reasonable levels of motion blur, or ones that that almost imperceptible motion blur and no stuttering or tearing and reasonable colours, though. You kind of have to weigh up which is most important. That depends on what you use it for most, which type of games you play most, and basically what your preference is.
Myself, I couldn't stand the motion blur I noticed when I first got an LCD display, so that's always been an over-riding concern with me. I realise that the colour fidelity on my display is not up to the levels of a good IPS panel, but it is pretty good after a bit of tinkering. Other people though can't stand TN colours and happily accept a bit more motion blur in games as a trade-off.
So... what do you think your use, preference and budget would be?