files two folders deep - how to extract to main folder

Open the containing folder (your home folder) in Finder and go to View -> As List. Click the triangle icon beside Documents, then the one beside Documents2. Select everything under Documents2 and drag it onto Documents. You can then delete Documents2.

You can also do this simply by opening two Finder windows.

 

The one thing I don't like about Finder is there is not "cut/paste", only "copy/paste"

To answer your question, it's easiest to use "column view" in finder. Goto your "Documents" folder. Then to your "Documents2" folder. (Should still see "Documents" in the first column). Select all the files in "Documents2" folder. Drag them to "Documents" folder.

This will be instant because you are moving the files on the same drive.

Let me know if that made no sense what-so-ever. lol

Edit:
I thought of something else.
Under "View" choose "Show Path Bar"
This shows you the whole path to the folder you are in (Bottom of Finder window).
You can drag files to any folder in the Path Bar.

 

If you hold your head just right, you can see a magical unicorn just under the Apple logo.

Here's a good page for the finder:
http://support.apple.com/kb/HT2470

Tutorials:
http://www.apple.com/findouthow/mac/#tutorial=anatomy