Ok, thanks heaps for the tips.
I followed the tutorial on Amiga Lemon. And I think I have it set for 4 Hard Drives, DH0-DH4, I've been crafty and added a Demos one.
I do want to reinstall Workbench from scratch, so I can get the WB3.1 - Fonts. but It tells me that the folder is full and write protected.
I've tried some google searches, but most of them are no longer valid and so it redirects me to daft places.
Edit: It's flooded back to me that there are different Amigas with the AGA chipset. So, this will call for different Hard Drive folders, example A1200 Hard Drive and A4000 Hard Drive.
What I'd like to know from Amiga Gurus, is what is a good / average setup for watching most Advanced Graphics Architecture demos

I ask, as it was mentioned earlier about fast / slow ram. And the readmes I've looked at dont mention configs.
Thanks,
Clyde