I was saved when I was 14, and I actually was fairly Calvinistic until I went to a solid albeit non-Reformed Christian high-school. I somehow equated Calvinism with liberalism (having been raised PCUSA), and I was your typical evangelical- though even then I knew that I wanted a church that taught God's Word without all the entertainment so prevalent today. During college, I was introduced to the free-will debate in my Milton class. I knew that I believed in free-will (thinking somehow Calvinists didn't) but I also knew God is sovereign and does whatever He pleases. I was inconsistent on this and maintained that natural man could choose God without God's special, electing grace. I even called myself Arminian for a time, not realizing I wasn't really because I believed in "once saved, always saved" (which I know is a inadequate way to describe the Biblical doctrine of perseverance). I even remember going into a Christian chat-channel that was discussing Calvinism and saying that I stands for Infant-Baptism

and I was amening this guy nicknamed Wesley-Arminus. The poor Calvinist was getting beat up on. I now want to know who that was so I can apologize
My college was a liberal Baptist college, and the primary focus in terms of spiritual growth was coming to a strong view of the inerrancy and sufficiency of Scripture. This was something I believed in, but I knew I had to get a firmer conviction of it because so many, including my family, doubted it.
Skipping over the details to get to the main topic of the thread, my first semester of grad school, a tragedy happened in my family. My cousin shot and killed my aunt and uncle. For the couple weeks following, my family stayed at the house of a dear Christian couple. It was during that time, I thought long and hard about God's Word and God's provision in every circumstance. I knew that I had been a faithful witness to my aunt and uncle and cousins, and that I had done my part, and I knew it was God who gives and takes away.
My cousin's older brother came and lived with my family for the next couple years. This drove me to the Word even more, as he was quite antagonistic to the Word, and much of it was due to an unusually rebellious spirit and cynicism (even the liberal Christianity of my parents was too much for him). He's actually married to a Muslim woman now. It;'s hard to know what he's thinking. But he's not beyond God's reach....!
Anyway, this drove me to the Word. Meanwhile, I had begun working at the Southern Baptist Seminary library. This was a wonderful help through my years at my liberal Baptist college. Particularly helpful were the sermons I listened to by Dr. Mohler. I loved the Biblical nature of the sermons and the God-centeredness of it all. Then, I found out that he was a ....Calvinist!!!! "But, but, he's CONSERVATIVE and BAPTIST!"
Several months after the tragedy, there was a huge icestorm, and I was stuck in my grad-school apartment for a full week (especially since I'd sprained my ankle just a week earlier and was recovering from that). So I decided to use the time for Bible-study and prayer, and I was reading Ephesians 1 one morning and ran across the word predestination. I thought, wait a minute....predestinated...hmmm....maybe God really does choose us for salvation! And so I started a word study of predestinate and election. Romans 9 was the big chapter for me. I honestly don't remember ever reading it before then. And so I looked up Calvinism on the internet and ran across
The Highway. In God's providence, I had run across this site in my Milton class and had sent my professor
a chart comparing Calvinism and Arminianism that proved helpful to the whole class. The two items that helped me most were Al Martin's
The Practical Implications of Calvinism and J. I. Packer's
Evangelism and the Sovereignty of God