The 9600GT might be OK on low settings, but if there is dust or rain or something like that, it might lag. It won't even play on High-Res, it just freezes, and the audio keeps playing.
I beg to differ there, the gameplay is INCREDIBLY choppy, but the 9600GT can play the High-Res benchmark. Before I swapped out my video card I was using a 9600GT OC and it could run the benchmark on high. It's not really playable, but the point is it will play the High-Res benchmark option. If you can support it I'd at least suggest getting 4GB of RAM, an E8400 Dual Core (775 Socket) and use that with your GT. You won't get the greatest but it should be able to play FFXIV at around 38-45 FPS on the low setting. With that processor, ram, and video card type I was able to get around 2300 if I don't overclock, just above 2500 if I overclocked to 3.6GHz.
Hope that helps.
EDIT: The FPS stated above was around the average I was getting when playing the benchmark and running the EVGA Precision tool to see the frame rate. Except for spot just before the camera panned up from behind the Miqo'te and the avatar (Character you choose when running the benchmark) to survey the battle on board the ship. At that moment and a few spots where the ship is nearing land the FPS dropped to around 21-26 for a few seconds then dipped back up into the low 40's.
EDIT2: And this was with DDR2 667 memory if that matters. Edited, Aug 7th 2010 9:10pm by SamusKnight Edited, Aug 7th 2010 9:11pm by SamusKnight
FINAL FANTASY XIV Roleplayer
Sair Gammonari - Hyur Midlander Male - Conjurer (Somewhat retired.)
Mihana Zhralyia - Miqo'te Seeker of the Sun Female - Archer