mr don, you write a lot. Please stay on topic
Back to the topic...
You shouldn't really bother cleaning the HDD once you're on the SSD. You may right click on the HHD drive on "My Computer" and use Disk Cleanup which should suffice as you're not using it as your default drive anyway! You could defrag the HDD once in two months as well.
I'd say move all your documents, things rarely used, pictures, movies to the HDD and that's about it.
Just my 2 cents.