Rabbi Tovia Singer (http://www.simpletoremember.com/articles/a/anti-missionary-mp3s/) says in one of his lectures that he had a Methodist minister contact him, asking to listen to his lecture series, and he wanted it overnight. The rabbi was a little perplexed as to why a minister wanted his tapes so quickly, but they were sent out. A few weeks later, the minister contact him and said that he and his wife had listened to all the tapes and had gone through their bible with a fine tooth comb.
They concluded that Rabbi Singer was correct, the OT did not support the NT in any way. Furthermore, the minister and his wife had decided to convert to Judaism.
There was a little snag, though, as when the minister offered his resignation to the church's board, they wouldn't accept it, because he was under contract. He pointed out that he no longer believed in Jesus; he was becoming a Jew. They said that didn't matter, he had a contract. LOL And, if I'm not confusing his story with someone else's, his sermons on the OT and Judaism have been wildly popular at his church.
So, you're not alone in your switch.