Anyone approved for S.S.I. after 2 yr wait- 2 denials & then had a hearing with a judge (with an atty.?)?

I'm in the state of Oregon. My hearing was 3-10-10. My lawyer said that he thought the hearing went as well as possible. How long does it take: the judge to give his decision, be notified of approval, and after that - how long does it take to receive the first installment of the back payments I'm owed?