Bridal magazines are stuffed with ad's for bridesmaids dresses. After awhile, you get numb to them and barely notice, because they are all so similar. Check out this website: www.lynnlugobridal.com. This designer not only offers a fresh look at the bridesmaids dress, but lets you custom make your dress with an awesome online tool. You choose the silhouette, colors, fabrics, and details.
Consider using different shades of color and complimentary colors when choosing your gowns. Having more than one color adds tons of interest and makes for great photos! It also keeps you away from everything being too "matchy-matchy" and gives you more freedom is using color throughout the rest of your wedding.