First stop: your town's art gallery, art association, or your nearest college with an art department. They can point you to artists who work big and will be very pleased to help you!
The SFMoma Gallery (in San Francisco's Fort Mason) is a great source for art. http://www.sfmoma.org/pages/artists_gallery_rentals_sales And, if you can't decide on a piece, take it home and live with it for a few months. The gallery offers a rental program.
17 months ago
This photo was added to 1215 ideabooks, including:
note the position of the library peeping out from the hallway and reaching to be part of the living space. Spanning two spaces for a library could be just the thing,
4. Hang showstopping art. Note how this space is largely neutral, and how the color from the art seems to filter through the whole room. Lighting from above helps highlight this piece.
When haute art isn't in your budget, consider a big bang for your buck in going with a larger piece with color. Unique and bright pieces can be found even in flea markets.
This glowing canvas has quite the impact. Its colors are repeated not only in the roaring fire but the landscape seen out the window. Its scale fills the wall it is hung on and beautifully enhances the room design by bringing in warmth.