Here's a good link for the bios set:
http://www.emuparadise.me/biosfiles/bios.html
My problem is getting the multi-track games working (Doom, GTA).
Anyone have a successful method?
EDIT: Never mind. Got it by pointing LaunchBox to the cue file instead of the bin file - that is, after I combined all of the bin files together and created a new cue.