Thanks Dan. I am aware that the Varranger is an awesome piece of software arranger. I prefer a hardware setup. but may be somewhere down the line in the future, I may add Varranger as well.

Knowing that it is able to play Yamaha, Ketron and very soon the Roland styles as well, you have a great all in one software arranger there. And if you come up with all software solution(No SD2/midi module) and a Mac Version, that would be amazing and you will have to upgrade your web server and payment gateway to be able to handle the ever growing number of buy requests !!
Good Luck.