I was actually thinking about taking it to a rear end shop in town and let them check everything out.
Or are they something that I can do? my limited knowledge of rear ends make me a little apprehensive.
It depends on what you want to do. They aren't that hard to work on but there are steps that require a dial indicator (which you will want anyway when setting axle end play). When I bought mine I went completely through it and I had limited knowledge as well. After tons of reading and the purchase of a couple of tools, and a couple I made, I tore into it and completely did everything. I was glad I did now I can do it again without being hesitant about it.
If you take it to a shop, if they are a reputable shop it can get pricey.