Hey people.
Flashus hosted a tutorial contest not so long ago.
Below you can find links to a few tutorials that he (and many other NOD players) found to be very useful.
Magic guides (warlock, angel, necromancer):
http://flashusrollus.webs.com/magicguides.htm
Melee guide (beast master):
http://flashusrollus.webs.com/meleeguides.htm
I think this will help a number of people to figure out what a relatively good BM build should look like.
Please note that your own build can be different, depending on your class and aim in your game (i.e. PvP or PvE, etc).
Hope this helps!