A few retail catalogs carry a limited selection of products. All of these guys had equipment they purchased from Europe, where people fish for carp more than any other fish. This brings me to another point. There are two styles of carp fishing, American and European. American style is defined as using equipment that is not specifically designed for carp.
Most people use American set-ups when they first get into carp fishing.
Like most sports, once addicted, the upgrade to European products is inevitable. Familiar companies like Daiwa and Shimano offer a huge selection of carp gear in Europe, but not here in the states since the market is not well established. Carp fishing does not require spending a bank-breaking amount of money. Most tackle shops or catalogs will have something along that line. Select a spot close to shore with about four to five feet of water.