Thanks for the reply.
So it sounds like most of the important things like map data, objects, and textures will be stored on the SSD. Good to know.
I have been advised by a fellow TGer to go the symlink each folder, i.e. my music, my photos, my video... instead of the entire users folder.
Edit: @ W0lle, So the whole "users" folder could be symlinked to the spindle, and then I could create a folder on my C: drive exclusively for my ArmA profile so that it would also be stored on the SSD?