Yes, they are. It was storming last night so I shut my computer down until I got up. It shut down fine that time (and when restarting today to do the disc check as well). So it seems it was a fluke the night before last.
I've had no problems yet with having the first half enabled. But I'm giving it at least a few more days before I test the other half. Is it possible that two may not work well together? (Just curious.

) I suppose I should test the start up items as well, if no services seem to be a problem. The only item enabled right now is Microsoft Security Essentials. I usually have most of them disabled anyway.