Get a hold of your local farmer's co-op and see what they charge for a soil test. Or look online at places like Biologic for soil testing kits. It's worth the nominal investment if you're unsure of the soil conditions. A strong start with the lime and fertilize will minimize risk and maximize tonnage. Then with a smart planting rotation, you can do a lot of the work by planting well selected blends.
Have you used your county auditor's page to assist you in making a map? With an overhead view from Google Earth, you can really get a sense of how your property fits in to the larger puzzle. We tend to manage our own property like it's in a bubble. Sometimes what needs done in relation to what I call the "square", which is the 640 acre square mile our farm would be in the center of, is not what is necessarily what we want to do. Knowing how our properties fit in to the neighborhood is also important when developing a management plan. I realize you're not trying to be the next Mark Drury, but I imagine you still want to make smart choices and understanding more than just your property is an important part of this process.