What's the best way to use x6 46 inch LED t.v's a computer monitor? No gaming, just browsers, WORD,Excel and some database reports. I've got x6 video cables running to the t.v's (50') and was going to use external video USB to HDMI video cards but after the third t.v the picture starts to get lighter and lighter, so I guess since it's USB powered, the 300 watt computer power supply isn't enough. How can I salvage this project and just get it done?? Any and all help is greatly appreciated. What I'm thinking is trying to upgrade the power supply and see if the x5 USB video cards get enough power to add the other cards. Ideas or suggestions?