To answer your "My Documents" question, here. NOTE:You must go on your 2TB drive and establish your own file system. I like mine to be D: and then 2 folders labelled "Programs" and "files". Inside of "files" or wherever you decide to put them, you need to create a new folder for Pictures, Videos, Documents, ETC. Make those FIRST!
Once those are made you go to Start->My Documents and then that will open a window (obviously :P) but on that window, there is a left column with a list of "pictures,videos,documents,downloads" etc. You right click one of those and hit properties. A smaller window will appear under the tab "library". Under a list of previously included locations (which you will want to DELETE) there is a button labelled "Include a folder..." then you have to browse for a folder. As an example: right click Pictures. Press properties. Delete the library locations. Click include a folder. Browse to your 2tb drive and find the Picture folder that YOU made. Apply and press ok and now that folder is your pictures destination. This is also VERY important to do for downloads because people often keep their download folder full, which will take up space so you want it to be on your larger drive. Hope this helps and isn't too confusing