Japonaiserie from the Voyages of a Steampunk Physician. I've neglected the Asian influence on Steampunk...here is the good doctor's remedy.
Cascade Coil Drapery via Apartment Therapy. Although you usually see it in silver/chrome colors, this chainmail style metallic drapery also comes in brass.
Brass Caning for Windows and Glass at HGTV -- an interesting way to "upgrade" your windows into a more formal appearance. I wonder if you could design some decidely steampunk motifs into windows? Gears? Cogs? Pipes?