Update: I just called 42nd Street Photo and they told me on the phone that they do have the Nikon D3x and the Nikon D90 body only in stock. I told the rep that the Nikon D3x was not released yet and he confirmed again that they have it. I would not trust them with my credit card in order to find out.
42nd Street Photo claims to have Nikon D3x in stock:
They also claim to have Nikon D90 body only in stock. I will call them today. If this is another scam to attract traffic (99% sure it is), I suggest we boycott this store - remember just visiting their site doesn't mean anything unless you make a purchase.