If you are not a FPS player, bite the bullet and get the Dell IPS good 24" for 500$.
Otherwise, you are in the same boat as me and a bunch of other guys.. Whatever you do, don't buy that Asus - it sucks. I really like the Samsung P2770H but it was too bright it hurt my eyes.
I'm looking at my LED options currently, hoping a 24" with show up soon...
Why do you say "if you are not an FPS player"? I was about to buy the Dell IPS 24" for $500 and I primarily play FPS. Is the 6 millisecond response time too slow for FPS?