I looked up a few benchmarks on Google and it seems that the Nvidia 7300GT is actually slower than the X1600 Pro. I'm not really sure which variations of the cards Apple uses (probably mobile sets) so that may be a performance difference, but why did Apple choose Nvidia for the 24"? I am quite happy to see that you can actually upgrade the video card in the 24" to a 7600GT. If I had that kind of money right now... Sadly, it costs as much as a MBP, and that's something I guess I can't stomach at the moment.