Sonar 2.0
I heard there were some severe bugs with Sonar 2.0 so I am sticking with 1.3 for now
I use Antares Mike Modeler and sometimes, Autotune. Mike modeler is pretty good sometimes, it will make a 58 sound somewhat better.
But mostly I use Sonar to dump wav files to import into other programs- When you get above 15 or 16 tracks Sonar gets messy.
Ehehehe.