"The purpose of these color profiles is something I could into another time, but the important thing to remember to avoid problems like Norm's is to make sure all your images were exported in the same way and so they either don't have a color profile or all have the same color profile. This will ensure that the site, at least color-wise, renders the same from browser to browser."

In case I end up wanting to make Firefox 3 look more look like Safari.

Firefox has more users, perhaps, than is commonly assumed. With Firefox 3 on the near horizon, this may shoot up even more.