Professions

Would it help if you could use a skill/talent tree calculator to
try out the kind of propose limitations asked for in this thread?
Well here are several:

darkmessiahmightandmagic.us.ubi.com/skilltree/
web.hc.keio.ac.jp/~fk061999/himeyasha/skill3/
http://diablo3.ingame.de/spiel/skills/calc/index.php?char=assa〈=en
http://www.d2items.com/skills.php
www.mycurrentgame.com/TooHumanSkillCalculator/Too-Human-Skill-Calculator.aspx
http://dragonica.db.mmosite.com/tools/index.php
www.worldofwarcraft.com/info/classes/talent-index/
http://www.conankave.com/kave_calc/necromancer/kave_calc.php

Hope that is enough for you.

Lol... basically, each class has three Professions to choose from (similar to talents in WoW, as I've pictured). You work your way down (or up, depending on the game) a tree of different unlocks. Some unlocks cost more than others, some require specific previous unlock to purchase. In the image I posted, orange ones are the ones you've purchased, green are the ones you have yet to fully-purchased.

Thanks Invinible, that's actually helpful!