Im asking this because Ive heard/read different things in different places, but if I were to become Orthodox, would I have to be baptized again even though I was baptized in a Protestant church? Or would I just need to be Chrismated?
It depends on which Orthodox jurisdiction, as well as the guidelines set down by your bishop, as well as which Protestant body, and if you were baptized in the name of the Trinity or not. Your bishop/priest make the decision, not some hoo-hahs on an internet forum. We can tell you what MIGHT happen, but your bishop/priest make the final decision.
This really is an Ask Your Priest question.