That's great news. Along with the nvidia card, if you are using an lcd monitor, you may want to see if dithering gives you a better image, especially if you look at small fonts or graphics details.
Depending on your eyesight and monitor quality, this may not do anything for you, but it sure does on my 20" iMac screen - while it is large, it is not Cinema Display quality.
I just added the FPDither option in my xorg.conf:
If your monitor is very high quality, or it just doesn't seem to make a difference, no need for it, but it makes a big difference on mine, whether it is ppc or not. Any box running the standard nv driver with lcd seems to look better to me with this.
Identifier "Configured Video Device"
Option "FPDither" "true"