In addition to the native ability in Sonar to populate its Staff View from a midi track, there are also a few freeware programs out there that can do that as well, and are a bit more robust:
Finale makes a freeware notation from midi program: Notepad
Also, one called MuseScore is pretty good for free.
There are REALLY good commercial programs that do midi to notation with all kinds of well-done editing for any kind of scoring you need, such as Finale's flagship program, called Finale, and also the one mentioned in the earlier post.
I would suggest you start with looking at what is already available through Sonar's built-in staff view for existing midi tracks, and then if needing more, look to the freeware programs I list here, and if those also don't meet your needs, then you could evaluate the commercial ones, which are some of the best ones out there.
Bob Bone