In Person Auto on Card Question??

I was able to get one of my 1997 Finest cards autographed in person. I would like to get the card graded and the auto authenticated. I have a couple questions:

-Should I go with PSA or Beckett??

-What service do I get if I want the auto authenticated and the card graded??

-Could someone direct me to a picture or auction link of what the label will look like on then slabbed card?

Thanks for any help / advice.