Ha! Now that I stated why I'm not upgrading to Sonar 3 - I'll admit that I did upgrade to BIAB 2004. It's noticebly faster. One thing I also got for BIAB that I LOVE is "101 Essential Jazz Riffs for Piano"... wish I had this resource long ago - it's a basically a collection of jazz riffs that can be played in any key, any tempo and the notation and the keyboard can be displayed at the same time. This has already given me some new soloing ideas.

I use BIAB for creating my lead sheets also. Sometimes I'll grab half-baked midi files from the web just to get the chording for a certain song, use BIAB to create a lead sheet and then play with various BIAB arrangements until I get a rough new sketch, then polish the final midi file in Sonar. Very useful.