mack, you actually have a clean log but you do have far too many sets of A/V running...you need to decide on one and let that be it. I see Symantec, AVG, and Avast. If I had to pick among them, I would go with Avast.
That may be your conflict right there. Try uninstalling two of them and then post another HiJack log and let's see what happens, ok? That should clean everything up.
Also you might want to try a trial of Ashampoo WinOptimizer Platinum Suite 2 2.0 to see if it can clean your system out. I use it and love it so much that I bought it. I don't normally recommend anything to anyone that has to be bought but you have lots of stuff that needs to be organized and cleaned and it is an excellent product. But try the trial and see what you think. If you don't like it, you haven't lost anything. Liz