Bloodboil??? I love it. Sounds like something out of an Elizabethean tragedy.
EMusic files are at 128kbps. Commonly advertised as near CD quality. Depends on what you have ears for. More than adequate for me. When measured against 192 or 256 on a superior sound system, there is a noticeable difference.
Depends on yr priorities. If you're dealing with material you don't have and don't want to spend $8-$12 per CD for (the old Fantasy/Prestige/Riverside catalogue), no contest. I've added something like 2500 files over the last 3-4 months at an aggregate cost of $50-$75. Conservatively, hard cc would have cost me (12 files to a CD, which is very high) $1500-$1600, probably more. No cover art, but I get that through MJ. Add the personnel in a custom field. So, all you're missing is liner notes, unless someone knows where to get them on-line.
I'm a fan, if you couldn't guess.
BTW, if you can access my Music01 library, you'll have some idea what you can find.
HTH