Professional Mariner Training Centers

I wanted to throw this out there and see if I am missing anything. I am thinking ahead and looking around to see what different classes the different training centers offer for engineers. I know about the training centers we all know about (Calhoon, STAR, TRL, MITAGS, MAMA) but I wanted to see if there were any other schools out there offering classes for us engineers? And which classes would you recommend at the different schools?

Quality Maritime in Jacksonville FL offers DDE.