ekurburski,
Two recommendations I'll make. Groove 3 tutorials on SonarX3 - there are two of them. With the Holiday20 offer from Cakewalk in the Cakewalk store you could probably obtain them for next to nothing if you hurry and take advantage of the Cakewalk promo. Eli is fantastic as a teacher. You'll run across his material on many subjects. This set of tutorials ( hours long) walk you through visually and with narrative about the features and menus. Great for getting your bearings.
Then there's a really interesting Groove 3 video (also avail in the Cakewalk store) called Mixing With Sonar X1. The tutorial walks through a song end to end. It's excellent! It also is really close to X3 in the feature set covered. There have been new things introduced in X2 and X3 of course, but 90 percent of the current program is covered in this tutorial. It's very cool.
On an additional note, I consume literally every bit of training I come across. Every presentation helps, from Scott's book, Bill's new book on Sonar Power, and including the material on Cakewalk University. For two staring points, I think the ones I mentioned from Groove 3 will really help you get out of the gate in an organized way.