Thank you for the terrific advice, yet again.
i7, 8GB RAM and two hard drives with Windows 8.1 Pro...sounds like an expensive system. I guess I could go for 4GB RAM initially and then upgrade that when finances allow in order to reduce initial outlay. i5 might suffice too?
I, too, do audio recording but have never used my PC for it. That's partly the reason for upgrading my hardware too, to be honest, although I had pondered dedicating a MAC to my audio work. In case you're interested, I play resonator guitar - www.nathonjones.co.uk.
Really appreciate the info. Thank you.