Hi luke,
Ok, since you're a beginner, I'll start from ground zero. First off, always always do all of your drawing in model space, and draw it full size. This goes for sections, details etc. Then switch to paper space, and here's where you'll create your views. You'll use the pagesetup command to create your final plot size, you'll get a dialog just like the plot dialog, and this is where you will establish your paper size. You'll then use the command "mview" to create a "window" in paper space to view your model. Once you have created a viewport (the "window" you created), you'll type "MS" (no quotes and it's not case sensitive), and this will place you in the viewport - through paper space. You then use the zoom command to establish your final scale. For example, you have created a window to display the plan/top view of your model - to get it to fit on a 24x36 size piece of paper, you may scale it say 1/4"=1'-0". To get this scale, you must be in the viewport you created (use the "MS" command) and then type "Z" or "Zoom" (again, no quotes and it's not case sensitive) and then you'll see a list of options. At the command line type "1/48xp" (again, no quotes and it's not case sensitive), this instucts AutoCAD to size the viewport's view to appear as 1/4" in paper space to equal 1'-0" in model space - thus giving your required scale. Now you want to display the section you've drawn. Type "PS" (again, no quotes and it's not case sensitive) to return you to paper space. Use the mview command to create a second smaller viewport, type "MS" at the command prompt, then "Z" then this time at the options prompt, you may type something like "1/12xp" for a plotted scale of 1" = 1'-0".
Now, as for cutting and pasting, don't do that and here's why, Windows only alots so much memory for the clipboard, and if it reaches that limit - which it often will - windows will resize what you have copied to the clipboard to fit - meaning when you copy and paste in AutoCAD, you'll often notice things are just a bit shorter/smaller than the original, and its because windows had to resize it. If you need to do this, just create blocks, and then you can purge them out later if you don't need them.
HTH
Todd