When I'm bored, sometimes I go looking for El Morad bosses. I know of a few spawn points, but I wonder if some of the old spawn points are still active. My understanding:

The spawn points I know are still active coz I've killed 'em there. These are also some of the 'classic' old spawning points:
Glyptodont Field just north west of El Morad Castle - Hyde
Deru/Apos - Antares
Dragon Tooth Soldier field near Kalluga Valley - Antares

The spawn points that I know used to exist but I aint seen 'em there. Although, this don't mean they aren't active, just that I aint seen 'em spawn there. Maybe:
Lich/DTS field - Hyde
Kongau/Laird - Hyde
Doda Camp Death Knight - Antares
Zombie/Skeleton field on the way to graveyard - Antares
Haunga field between bridge and Eslant gate area farmers field - Hyde

Any of these still active? They're quick'n'easy to kill and you can get the occasional gold coin or something.