Avoid Overstock Digital like the plague. I ordered a D7000 for $699 (I know it was too good to be true), got the "verification" call, at which time "John" tried to high-pressure upsell me on overpriced memory cards and replacement batteries. Toward the end of the call he asked if I wouldn't like to "upgrade" to the USA model (i.e. the actual product they advertised) with the magnesium body for $899.
If not out and out fraud, it is certainly very very shady. Check reviews on Yelp. I tried to leave a negative review on the reseller ratings site but would't you know it, the review violated one of their "rules."
And yes, as I am sure they intended, I thought they were affiliated with Overstock.