Thanks ockham, i will try motionSWF in the future (or squeeze/flix) but i'm little bit afraid of the size.

Thanks sdraun for the example but like xantor, i have many problems to read it...but the result looks really nice specially for a first try.

To keep all in vectors, the best things could be
    - poser to easily make the character an animate it
    - bodystudio to import it into maya
    - maya to render it in a swf or swft (swift3d)

At this time, I can't still make the tests...my computer is too slow.

But once again, in a first stage, if i can get a render as in the example it should be really great.