Go to a Furniture Store
It's almost impossible to determine if you'll like a piece of furniture from a picture. You'll want to see it first-hand. If the store you visit doen't have the exact piece you've found on-line, at least you ean evaluate the quality of the line, see the different finishes available, and determine if the company makes things that have a look you like. If you're looking for a coffee table, you might be able to see a side table. You'll get an idea of how your piece will look and you'll feel more comfortable about ordering the piece at the store or on-line if you've seen it in person first.
I've always liked this furniture catalog, despite the fact that some of their merchandise is a bit on the twee side. (Anyone for decorative lighthouses or bunny sculptures?) The catalogs are attractive and the merchandise is fun, with a decidedly feminine slant. (This is the furniture catalog equivalent of a chick flick.) And some of the prices are so good you might find yourself doing a doubletake. Definitely not for modernists, but a good choice for homes with a traditional, country or cottagey flair.
The name says it all: DWR takes classic contemporary design out of the realm of the über-rich and makes it accessible to anyone who wants it--without the snobbery that sometimes comes with modernist furniture. All of design's greatest stars are here--from Aalto and Eames to Le Corbusier and Starck--at prices that are a tad steep, but often less than what these pieces have commanded in the past. The company also has dozens of bricks-and-mortar stores--excuse me, studios--where you can test-drive the merchandise but not walk out of the store with it (you still need to place an order).
I discovered this company many years ago when I stumbled into one of their stores on a vacation and returned a short time later to buy a sofa table.I still have the table, and still enjoy visiting the store and perusing their catalog. While it's easy to confuse this chain with Pottery Barn (especially when their stores are next to each other, as they are in my city), Restoration Hardware plays into nostalgia a bit more, with lots of reproductions and pieces inspired by the past. The quality is good, the design top-notch, and the prices nestle somewhere between Crate and Barrel and Pottery Barn.
This one's a bit of a cheat, because IKEA doesn't really offer traditional mail order. But for those lucky enough to live near one of their stores, the arrival of the annual catalog is a momentous event, and you can purchase most of the catalog merchandise by phone order. There are some great things to buy at IKEA (the name is an acronym), and the prices cannot be beat--especially on lighting, accessories, storage, window treatments and the like. The design can look a little dated and pieces are often scaled a little small, but I can't think of another furniture catalog that I keep--and refer to--throughout the entire year.
Last and--if not least, then perhaps not in the ranks with some of the ones above--is this furniture catalog owned by Neiman Marcus. I can't say I peruse this one as often as the others (for one thing, they charge for the catalog), but I like the mix of traditional styling and glam looks. Horchow's flavor is definitely Old World, with a strong European influence and a bracing celebration of ornament that's overlooked by most other merchants. Although much of the stuff isn't my taste, and the prices can be a bit daunting, I never fail to find something I love here--and that I haven't seen anywhere else. Plus every so often they surprise you with a great deal. Check it out and see if you agree. (And if you don't want to pay for the catalog, you'll find a link on their Web site that'll get you one free.)