UPDATE: Amazon.de is back to pre-orders.
Amazon Germany is showing the Nikon D800 in stock at EUR 2,899 (£2,399, straight conversion), including VAT. Please click here to buy. Amazon France are showing the D800 shipping in 1 to 3 weeks, but at EUR 3,399 inc VAT.
I do not know if it can be shipped to the UK, but if anyone orders one and is not prevented in doing so at the time, please let me know so I can pass it on.