change NAME ! PLEASE HELP > THANKS

I want to change my last name to my hu*****ands/ even though I feel I should not for the sake of femalism activists.
but I think that would make us closer and he said it would flatter him very much.

I also want to change my first name .
So my questions are:

1, What are the possible ramifications, since I am a doctoral students and have already had a few papers published.
2. what is the easist way to do the name change?
THANKS A LOT