Welcome to the club (in 3 days). I don't think that you will be disappointed.
Chord posted a few days ago, that they have sold nearly 50k Mojos, and still the number grows.
This does mean that there is a vast reservoir of knowledge built up on Head-Fi, with a lot of common questions/answers documented in post #3.
I always suggest spend the 3 days compiling your music list, then enjoy the music and see where it leads you - it has certainly led me to explore many new musical styles/artists/etc during the last year.
There is also the Mojos greatest hits thread, where some of us discuss tracks that sound very good using Mojo.