Not much progress here on the empeg front, but I am getting the music library ready. Cleaned out the various free songs that didn't interest me in my iTunes library (Match exposed a lot of these, but they can be hidden/removed). Also going through my CD collection to ensure what I did own in the past is all properly in iTunes and accessible via Match.

To keep things empeg friendly, any CDs missing from iTunes still are brought in via the older MP3 format to the master library. AAC will only be used on match enabled platforms (my other Macs and iDevices).