Honestly, I bought the Samsung 170N (at the time it was $400, like the 710) and even though it says on paper it has a 25 ms response time, I have never had any serious ghosting problems. Even on NSF:U, UT2K4 and other really fast games, it runs great. Granted, there IS a little blurriness around the edges, but thats only if you run it outside of its native resolution of 1280x1024. Running at the resolution, UT2K4 is flawless and runs on par w/ my Samsung 955DF 19" CRT. The image quality is not identical, but it certainly does NOT hamper my gaming experience. Either way you go, Samsung LCD's are bright, crystal clear, and fast (in the case of the 710 and 172x) and you really can't go wrong with them. MagicBright features are awesome, on all Samsungs.
It leads me to wonder why gamers are so quick to denounce LCD monitors. I had to get one because of size constraints, and was pleasantly surprised at its performance. Even still, LCD monitors are coming in widescreens, which makes gaming even more awesome. Ghosting seems to be no longer the issue. Is it because of the resolution constraints? Or the price? Honestly, the price is worth not getting a herniated disc from lugging around a 70 pound crate.