monoprice.com or firefold.com generally have pretty decent deals on HDMI cables. if your "standard" cables are component video cables... the ones with RCA connections that are generally red, blue, and green... then no there will probably be next to no visual difference between Component and HDMI. As far as HDMI cables are concerned... it is digital so the signal is either there or it isn't. Don't spend a bunch of money on expensive cables. As long as they're not shoddy, bent up, or falling apart you should be fine.