Its a topic of much discussion and much diverse views in the Body of Christ, and a lot of the way you view this doctrine depends on your experience. RC Sproul and Donald Hubbard both say you receive the Baptism at conversion and rely on Scripture for this interpretation. They are both great students of God's Word and great Bible teachers. But the caveat here is that neither speaks in Tongues. ( I glean this from their writings and teachings). I love the great Bible teachers but I fear sometime they limit the Holy Spirit or maybe they have such great faith and knowledge of the Holy that they do not need the gift of Tongues. As one said it is the least gift and the Apostle said he would rather speak in a known tongue than many words in an unknown tongue. I also fear there is much error in the Body of Christ in regard to the Holy Spirit and the manifestation of Gifts. Sometimes the desire to be gifted out does the desire for Truth and Biblical correctness.
Please watch the videos in the blog and give me your opinion. God bless in Christ