Good luck. It should make your workflow much more manageable.

Here's an example of what purging your memory can do.

I've just done this now. After my import of a V3 figure, hair, clothes & a chair prop my resources came down to 59%. If I couldn't purge my memory I would start to struggle after working around in my scene after a certain amount of time & eventually this would drop below 40% I reckon. So now I purge it. My resources now go back up to 78%. It may not seem alot, but it is. After working within the scene, changing atmosphere. working with lights, materials, camera etc I may lose some resources again, so I go back to purging. If I don't import anything else into my scene I can generally keep my resources over 70%, good stuff!