I never understood the whole "Is it quiet when you shoot it"... What difference does that make? You could hang cow bells on your bow and it wouldn't matter once you let the arrow fly.
My advice for a newbie.. Find a cheap used bow.. There are a lot of people out there that are willing to spend a lot of money to have the latest tech there is and they sell their current units cheap.
Trust me when I say that how a bow feels and shoots to you is 10 times more important than how new or expensive it is.
My bow is pushing 10 years old and I never miss.. Might have to get a new string one of these days but I won't let go of the bow for at least another 10 years.