What about banding? I was really interested in Sony's W6 series, especially since I can get the 42 inch for less than $600, but I'm reading everywhere that it suffers from banding issues.
You mean color banding which is usually visible in gradients? I haven't noticed any, but I haven't looked at any test images either, just a few PS3 games and TV.
If it's there I certainly don't see it in normal use, and I'm usually very sensitive to this stuff.
Or maybe I won the panel lottery

Edit: just did a quick Google search, now I know what you mean. Well, I can see a tiny bit of banding when displaying a completely uniform dark grey image, but I really have to look hard to see it at all even under these extreme conditions. I really can't see it when there's anything going on on the screen. Not even when the screen is completely white/black. Non-issue for me.
I also don't think I've ever seen an edge-lit LCD TV without this.