Getting new computer

I have just gotten a new computer to replace my aging computer that I have been using FS2004 on. I will be installing FS 2004 onto my new computer. Are there any folders / files that I need to backup off the old PC and then copy / paste into the new FS2004 on the new PC?
For instance, these folders? Aircraft, Gauges, Sound, Effects, Modules, Scenery, etc.........
I ask this as I do not relish the task of installing all the aircraft, gauges, sound, effects, etc.. again.
And, what about the FS9.cfg in the C:\Documents and Settings\username\Application Data\Microsoft\FS9 folder? Copy that file over to the new PC?, or copy over the entire contents of the FS9 folder at the above location?
I also have add-on scenery, AI, etc, that I installed over time.
Will I have to install fresh again the add-on scenery, AI, etc??
Is there a easy way to accomplish all of this?
For instance, these folders? Aircraft, Gauges, Sound, Effects, Modules, Scenery, etc.........
I ask this as I do not relish the task of installing all the aircraft, gauges, sound, effects, etc.. again.
And, what about the FS9.cfg in the C:\Documents and Settings\username\Application Data\Microsoft\FS9 folder? Copy that file over to the new PC?, or copy over the entire contents of the FS9 folder at the above location?
I also have add-on scenery, AI, etc, that I installed over time.
Will I have to install fresh again the add-on scenery, AI, etc??
Is there a easy way to accomplish all of this?