Wow, that's a short list compared to others. I think I may well be the only one with a shorter list than you. And I've only heard of two of those on your list.686MB [9 artists, 10 albums]
I just got a new laptop so this will increase soon, but to probably only 10 or 15GB at max.
The only bands/artists I listen to that much anymore are:
Anubis Gate, Bruce Dickinson, Circus Maximus, Communic, David Valdes, Edenbridge, Hibria, Icarus Witch, Michael Angelo Batio, Shadow Gallery, Symphony X, Therion, and Týr.
Paradise Lost is unremarkable, especially compared to their neo-classical/progressive material. The latter (band's earlier albums: 1997-2000) have much less heavy/simple riffs and is way more classical influenced. Listen to this songWow, that's a short list compared to others. I think I may well be the only one with a shorter list than you. And I've only heard of two of those on your list.
Symphony X -- I have their "Paradise Lost" CD but only listened to it once last year. I recall it got exceptional reviews that led me to buy it, but after one listen I apparently wasn't impressed. I should get it out and give it another listen -- maybe it will grow on me, taking a few listens to truly appreciate.