If your just going to run the cable across the floor and not doing an in wall installation or anything like that, the cable you were looking at will do the job.
Here is an exampe of a long (50 ft) high quality cable, note the price : http://www.amazon.com/Monster-MC-1000HD-50-Ultra-High-Speed/dp/B000UF53HK
Here is an exampe of a long (50 ft) high quality cable, note the price : http://www.amazon.com/Monster-MC-1000HD-50-Ultra-High-Speed/dp/B000UF53HK