I did a similar upgrade on my media server PC a couple of years ago but chose an SSD drive instead. Everything runs so much faster. I bought a 250G drive and a 1G USB external drive for storage (and later added another 1 Gig 7200 rpm internal drive for even more and faster storage.

eg:

https://www.newegg.com/western-digit...quicklink=true

One bonus with WD drives is you get a free version of Acronis TrueImage for backing up your drives.

https://support-en.wd.com/app/answer...web/a_id/14926