You will find that the effort to work though these records are well worth it. I have managed to work my way back to the early 1700s, and have found out some remarkable facts about my ancestors.
You are entering a period in your research where you will become more than just a casual researcher in your family history. Yes, it is a challenge to work with the Spanish language resources, but you can do it if you really want to. Just think of all of us that have reached the same point in our research. We took up the challenge, and have taught ourselves to work through these records,with lots of help from other researchers that are generally very generous with their time. At the FamilySearch site, another resources that is available is to ask questions in the Forum. I have recently had some help regarding some abbreviations that I couldn't figure out, and by asking others in the Forum, part of the answers were provided, and I figured out the remainder. It really helps to ask others, as you have done here at Rootsweb. So, give it a try. Find one of the Spanish language records for your ancestors, learn to translate it, and build on what you learn. Pretty soon, you will get good at it, and can help others, and by helping other you will learn even more!