Congratulations!!!!!....am happy for you and how to start a new year with such a great news....this a combo with double,double..lol.well with regards to the OHIP ,you will need the underlisted document.
1. the letter from the CIC that you have been approved for PR
2.Prove of address....its can be either bank statement,fone bills or any thing that have your wife name and address on it.
3.a photo ID with signature issue by the province or any other identification with picture and signature eg passport.
with this you good to go with your OHIP registration at service Ontario and it will take about 3 months to receive the card......once again congratulations and almost are finished with this waiting game.