Although I like the idea of the SIbelius sound sets, I am thinking its better to do the score in Sibelius, then export the parts in the MIDI part for each track (for note and dynamic information) to Sonar and then do all the program changes for the articulations manually. There is no way I would attempt to put lots of note data in the piano roll in Sonar - it's obvioulsy much easier in Sibelius.
Does anyone else do the same thing, put the notes in Sibelius, export individual parts to a DAW program and do all the articulation and mixing stuff there?
I noticed the Rite of Spring was done in Sonar 8.