Customizing views is one of the great advantages of MC. I would be careful to modify this to much to remove and add different media types though. If this things is wrongly tagged, you'll make a mess of your library, and it'll be hell to get things to work right in the future. Again, I would recommend that you set the Tag on import rules correct, so new media is 100% right. And THEN you can play with customizing views and everything else. If you just learn the basics of importing, importing rules, media sub types and a bit of customizing views, there is not really much more to it. It'll make a good basic first time setup.
This is normally a very helpful community, so if you are feeling lost, do not be afraid of asking for help. The wiki also contains some good articles.
I'm a IT guys my self. However, that does not help all the time. The sheer amount of options and possibilities in this application can confuse anyone.