1) If you can find one. They're in short supply nationwide.

2) Before next year. A little birdie told me that Denon is raising the price on the 3910 by $200 as of the first of the year...

Not a great source for A/V reviews, but the New York Times just did a review of DVI equipped DVD players. The Denon 1910 and a Panasonic player did the best according to them.