You've spent $2000 on cables to your Vandersteen? Sorry, I found that a little entertaining. If you want to squeeze max out of your HDTV, you're going to want to have it professionally calibrated. You'll also if you're worried about spending the extra for monster cable(Any high end audio person will know MONSTER IS SHIT.) buy a calibration DVD instead, you'll pull A LOT more quality having your TV properly configured.
Bit off topic because what Vandersteens are you running and what is powering them? I personally never liked the sound, their 2Wq I kind of enjoyed, but for some reason I've always loved the Adire Rava's for price/performance, especially for music.
I guess it really doesn't matter anymore, if you like your Video get a Avia DVD and have your TV professionally calibrated. It's like a whole new TV.