Mixing metals is a great thing to do. Namely, it allows you to open up to future possibilities of tying in other options, whether they be a door knocker, lamp bases etc. However, what I would say would be lovely in your specific case is to go black. With your Dutch Colonial home, this will allow for a traditional fixture to feel slightly more modern, not to mention clean looking by way of its color delineation. Take a look at this one for example. I also like it because its a drum. My main recommendations for selecting drums, is that they often come with light diffusers, so you aren't forced to look at bulbs all the time or get light glare in your eyes. Let us now what you end up doing! http://www.potterybarn.com/products/olsen-metal-encased-linen-drum-flush-mount-ceiling-fixture/