I need to hook up my PC Which has a GeForce 6200 video card with a DVI-I Output, To a Mitsubishi WD-57731 HDTV, Which has a PC-DVI Input connection.
I need to have a cable at least 25 feet long. I'm having trouble finding the right cable. Any Advice?
Thanx in advance
DJ Dave , ,

Even though your PC has a DVI-I output connector (digital and analogue) I suspect that all you need is a DVI-D cable, as you'll want to feed the monitor with a digital signal.
As well as the fact that digital is much higher quality than analogue, you can also get more length from a digital connection. Depending on which source you believe, that length you need is about the limit of the standard, but you should be okay. If you need longer runs, there are repeaters and fibre-optic links.
Depending where you live you should have no trouble finding the cable, though you may have to mail-order it. A quick Google should locate a supplier. In Australia I found
this supplier which would seem a good place to start. Rather than an extension cable, I'd suggest a straight cable.
Wikipedia has some good reading on DVI.
Paul Zucker