Well............
I have some thoughts on this. For one....a woman splitting the last name of her husband or adding a hyphen to the husbands name is a nit wit IMO.
But, I find it totally acceptable if she makes her maiden name into her new middle name. Reason why I say this is because for the last 2-3 months, I've been doing alot of genealogy research for my family. For one, I find it an old tradition thats been long forgotten or alot of people don't do it any longer. Also, it really makes it easy for researching ancestry on the wife's side of the family.