I think it's okay for them to be different, and I can see why you'd want the warmer tones. Find a touch or two of darker metals as you accessorize your kitchen to help pull them together. Not having seen anything but the one knob, another possibility might be to consider changing the finish of your light fixture as a way to pull things together. Is that possible?

i think it is fine to mix, though i am one of those matchy-matchy types who would prefer all silver tones! fwiw, i like those knobs on your cabinets.

I sure hope you can have bronze with Stainless-it's what I ended up doing! Haha! I always thought everything needed to match, but when I brought home satin nickel hardware, it did NOTHING for my cabinets and the bronze looked great. If you search in the FKB gallery, you'll see that nearly every kitchen has some kind of mix.
I think you should think of your appliances as one unit that should all match, then think of your pulls and knobs and maybe lighting together as another.
I say do whatever matches your cabinets best! Good luck

I just finished a remodel and used a very dark soft iron finish on my cabinets knobs. My cabinets are a natural alder. My appliances, sink and faucet are all stainless steel. I did not start out with the darker knob in mind but it really looks great. I think you would very happy if you coordinate your cabinet hardware to your cabinets and not worry to much about the appliances. Worked for me!

Thank you all for responding so quickly! I am going to call MyKnobs now and see what they can do. I was supposed to receive the Classic Brass knobs in mid-November, and now they are saying end of December. Ridiculous. Cross your fingers and THANK YOU for your opinions and feedback!!!!!

My kitchen is multi-color with mixture of antique brass cabinet hardware and door knobs, brushed SS sinks, brushed nickel faucets, white and brushed SS appliaces. Of course, they look good together. LOL, I'm the only one that looks at them!

This is a new trend that I'm starting ;)

I'll 'fess up to an oversight of my own in my new kitchen. About 3 weeks after my sink was completed and been used every day, I realized that my faucet is chrome and my soap dispenser and filtered water faucet are brushed nickel. So, if it took me that long to notice, I don't think it's a big deal. No one else has said a word.

For some reason I didn't read the last 2 posts before I posted again - you've got me laughing! Thanks!!!!