You will have to do a lot of research to find a hard drive based system that works for you.
Here is a company offering hard drive front ends: sonore.us
I have not heard these products so I'm not recommending them, but it may be a place to start your search.
Here is a company offering hard drive front ends: sonore.us
I have not heard these products so I'm not recommending them, but it may be a place to start your search.