I was about to jump on that deal but went with the Hyundai L90D+ (19", 8ms and DVI). I knew I wouldn't be able to push too many new monitors past my wife so I got what I really wanted. If I had to get a cheaper one, the 710N was the one I was going to get.
I upgraded from a 17" crt as well and don't have much experience playing on other LCD's so I can't tell you for sure how much you'll like either one. Just remember that, to keep the picture as clear as possible, especially with analog input only, you'll want to fix your resolution at 1280x1024. Not sure my eyes would be able to deal with that crammed on a 17" screen.
UT2K4, CoD, RTCW and ET all look great, BFV not as great since it doesn't support 1280x1024. The game plays great but the text is a bit fuzzy (I've only hooked up mine with analog so far, waiting to get used to what that does before I plug in the DVI to see how much of a difference there really is).
Our setups are pretty similar except for the card - I'm on a 9600pro so you should be better able to push out those pixels.
Check through all revies on Egg and the threads here - lots of people talking LCD's.