What is Fundamentalism? By definition, Fundamentalism is believing in the fundamentals of the faith (virgin birth, deity of Christ, salvation by grace through faith) and standing on those. Fundamentalism involves separating from those who do not believe these fundamentals. By this definition, I am a fundamentalist. I am not going to compromise by endorsing false teachers.
In practice, from what I've seen (and I would say that I've seen and heard a fair sample) of so called fundamentalist churches is that there is a different set of fundamentals. They take secondary doctrines and preferences (using the KJV, not using CCM, the complete free will of man) and making those primary. Those who do not believe the same in these secondary issues are denounced from pulpits. I have heard some label an evangelist "liberal" because he used the ESV at a church that uses the ESV.
Am I a fundamentalist? (It gets really hard to type that word over and over.) By the first definition, I am. By the first definition most evangelical churches that aren't considered fundamental are, in fact, fundamental. By the practical definition, I am not a fundamentalist. I am not going to separate from someone who disagrees with me on a minor preference. And I am not going to separate from those who love Jesus and want to see people saved.