Drawing Lines and Vectors in Unity

So I've been looking into making 3d graphics out of lines and vectors lately. Mainly how one would go about doing this in C# (XNA) since I have some (limited) experience with the syntax. But since I'm not very experienced in programming in 3D I thought it might help using an established 3d engine such as Unity.

I've been looking around for the most effective ways to draw lines and 3d shapes in Unity without much luck. There seems to be a general lack of tutorials for Unity right now, hopefully that will change with time.

So could anyone point me in the right direction, or maybe at least try to explain what method you think would be the most effective?

Edit: Wow, I found the Line Renderer. It seems incredibly simple. I'll report back with my results!