Through a LBS or even some net sites, you can get what is called a "build kit." These kits have all the components + or - wheels depending on the kit. Although you usually can't pic and choose what is in the kit, the parts are of similar quality to one and other and are bought in bulk to lower price. Some places will be reluctant to sell you a kit without a frame since the kits tipically come from the frame makers. If you can find a LBS that is ordering a frame for stock or someone else, they may be able to get you a kit at a good price assuming you are willing to pay some labor for them to build it up.