Just downloaded the Trial of this awesome program and am almost intimidated by it. Have been playing around with programs like Bryce, Carrera, and Poser for the past 5 years, but this is something totally new and awesome. I have seen some major talent here and I am so open to anyone who is willing to share any knowledge with me they have to share. Just hope I can get as good using this program as I have sen many others do. 
Hi, welcome.
ZBrush is very different from other 3D softwares, and it can intimidate newcomers, but once you have learned few initial concepts it become very easy to use in comparison with the other 3D softwares 
Have you tried to have a look at the zclassrom page?
www.youtube.com/user/cannedmushrooms#g/p
and aurick’s tag resources.
http://www.zbrushcentral.com/member.php?find=lastposter&f=99