Again - do not worry about “taxing” the CPU - it’s designed to be taxed. How you want to set this up and how much money you want to spend is up to you but my standard DAW build has been like this forever.
An SSD for the OS and apps
A modern SATA for Recording
A modern SATA for samples
and that’s it.
Readycache, TurboBoost and extra hard disk? Most of these is just hype to get you to spill more dollars. More hard drives equal more noise and more power drain and a larger noisier PSU and on and on. Your apps will never run faster (or better) than from a good SSD as your C:\ Drive.
Use the dollars you will spend on this useless stuff and get yourself the plain ole -V and an i7 3770K chip. You will have more power than any app will know what to do with. And have a DAW that will easily last several cycles in the hardware world.