Hi
Yes, it is possible.
Possibly anticipating your next question - Converter does not explicitly provide for synchronous migration of several machines but you can do something about that. Do a scheduled synchronization and schedule the final sync task at almost the same time. Set up the conversion to stop the important services, i.e. IIS, exchange, and SQLServer. By 'almost' I mean let the IIS and exchange start a couple of min earlier. I presume that they are clients of SQL server, thus you will keep the consistency.
Disclaimer: my assumptions might be over-simplistic or incorrect, you need to check.
HTH
Plamen