Thanks Fencers. I knew I could count on you for a blunt and informative answer.
And yes, the information I read was probably out of date. I don't have a purpose or a preset build in mind, I was just going as I went along. I should probably go through and re-read the tree and figure out how I want my build to play out. Which sort of leads me to my next question -- unless I'm just tossing my points out there haphazardly, should almost any build be viable?
On another note, (and please don't poke too much fun at me), but I can't figure out how way points in the game work. Do I have to be at a way point to travel to other way points or something?