I discovered Jeremy Kemp's Prosim Virtua blog from the NMC Campus Observer. The Heart Murmur Sim is located at this SLURL within SecondLife. If you aren't familiar with SecondLife, I would highly recommend it.
This sim offers a great example of the type of training you can do "inworld". Listen to the podcast and you will hear about how Jeremy collects his data and what type of data he can collect.
I also discovered at the SimTeach wiki a discussion group connecting these sims to LMSs. So far there is work being done creating a connection to Moodle and I'm looking forward to seeing that in action.