Well I guess Audioslayve and I are going to disagree on pretty much all points of this thing. Going with an actuator that has a slower close rate then 2" sec. will give you a smooth close almost identical to the hinges, and wont require replacing hinges, or custom fab of any mounting.

However, I do have to agree that a grill in the center of the cabinet would be my choice. Unless this is your house and you wanted to try your hand at motorization. (again this one would be fairly easy, so not a bad place to start.)

I have a complete parts list and wiring layout for you, if you want to go ahead with this project, I just dont want to spend the next 20mins typing if you dont need it. Just say the word...