Yeah online somewhere is your best bet. If you go to a store you will get absolutely raped on the price, although you will have it right away. Newegg ships fast and has good prices for their cables, and oddly enough as someone mentioned EB is pretty good for these too. I bought a 50 ft. one from a guy on eBay before by the name of cat5cableguy and it was a pretty good cable, although it will probably take longer to ship to you than Newegg or someplace.