That is actually similar to what I'm planning: bronze lighting fixtures and brushed satin cab hardware. I've seen quite a few similar kitchens w/ this arrangement. If you haven't already, you can view tons of kitchens of other Garden Web Kitchen forum members at the Finished Kitchen Blog. Here is a link that might be useful: Finished Kitchens Blog (FKB)

I like mixing up metals. Visually more interesting. I have a display in my front window that has RUST hardware on the light alder cabinets, stainless steel range and a chrome pot filler. No one ever notices this until I point it out. If everything was SS/satin nickel look, it would not look as nice, IMO. I also did a kitchen, satin nickel hardware, white appliances and ORB lighting. It looks amazing too!

the finishes are fine[if that's what you like]. However I think the dimension and shape of the hardware in the kitchen ,[ in this picture ] are not great with your specifics. Keep the gold hardware, if you desire.....but at least reduce the pull size: generally seek a softer/different scale/shape. These are too modern, and others are probably available. there are more warmer finishes to choose from, which means more configurations.

If you do all the fixtures a different finish, it is going to look like you shopped at the sale bin and picked what you could find. I kept all plumbing fixtures the same and added other finishes in sconces/pendants and knobs. Also pay attention to the finish of your door hardware because that might introduce one more finish to the mix.