I just bought one last weekend, it works perfect, no dead pixels, I checked it out at my seller's, but I can not use it because my powerbook is too old and it hasn't a DVI output and the adpater I need is around $250.
I would include the adapter (dvi/ADC) valued in $99.
I Paid $550, I want to get rid of it asap. This model is the plastic "old" one, not the titanium. I would sell it for the same price not including shipping.