help me in buying a camera ??? please

hi
i want to buy a professional DSLR camera ,
that records HD video and i am thinking about these :
Sony alpha 900
canon 5d II
Nikon D700 ( i am not sure if this records video )

please help me in choosing a good camera and if there are another cameras in the same range please tell me

No video with the Sony. Terry

No video with the Nikon D700, but it's a fantastic camera. If you need video, then go for the new D7000.