This one's been bothering me. About to wall mount my shiny new Samsung LCD with HDMI socket and want to ensure I fit a good quality HDMI cable before fitting to the wall. But do I need to spend big money on this? Surely as HDMI carries a digital signal what possible advantage can there be in buying anything but the cheapest cable? Isn't the digital signal as it leaves one end gonna be exactly the same when it arrives at the other? I can understand that analogue cables could have the signal altered by whatever forces but surely not a digital signal? Any explanation as to why this is or isn't so would be appreciated.