Which ebook reader for screenplays?

[panek]

I want a reader that can handle pre-formatted PDFs (screenplays). I'm amazed that it's 2011 and there still doesn't seem to be a simple, affordable option for PDFs -- that works.

I have considered the Kindle DX, but keep reading that it's not worth the price. I have seen iRex DR1000s on sale and have read that they handle PDFs well. I want the ability to zoom and still maintain PDF formatting -- or at least maintain some form of legibility. It seems that larger readers handle PDFs much better. I would love to buy the Kindle 3 but can find no information on how it handles screenplays (poorly is all that I've read).

Any advice? I've been researching this for months to no avail.