Right now I have my computer hooked up to my TV so I can watching movies and shit on there. I'm just using DVI right now (videocard has a DVI out and TV has a DVI input) but the cord is too short so I want to buy a new one. My question is, would there be much of a difference if I just got a longer DVI cord or got DVI to HDMI cord? I have a 720p tv.