Oh, yeah, there is a lot to learn especially when you are new to the hobby. I'm not sure why it is called a hobby because you can get down right involved in this and it can become very exptensive. Once you are "into" it you will find you don't have enough time in one day anymore.
I'm not a noobie at scanning, but I can tell you that these other folks on this board are WAY smarter than I am. There is soooooo much to know and learn.
The main reason I asked what you were interested in listening to was that if it were things like TV audio, railroad, that type of thing, you could almost get away with an old standard VHF/UHF scanner, but that would only wet your appetite and so going all the way and getting into something that is trunk-tracker capable (oh, and that is trunk, like trunk of a tree, not truck) gives you the ability to do both.
Most of us here are interested in monitoring the public safety agencies in the area because they can provide a lot of excitement. I just listened to SLC FD work a small fire. Several of us monitored the shootings at The Trolley Square Mall earlier this year, so you can see how it can be exciting.
N7OLQ lives in Lehi and he is an Administrator here on this forum. He can tell you a lot of things and if you have a burning question, just put it up here and someone will answer it. It is best to do as much research as you can on your own because that teaches you, but these guys can certainly fill in the gaps.