Your 730 will use the ART files. Version 4 probably. As for digitizing your own designs, you will need to buy the Bernina programs (which will run close to 2K by the time you buy all the parts to the program that you need.) I have Explorations, which is a program put out by OESD (Oklahoma Embroidery Supply Co.) It has several levels. I bought the 1st level for $250.00. This allows me to manipulate designs...I can break apart existing designs and us pieces of them to make my own designs or I can design my own stuff by resizing, adding letters, etc. I can add extras to this program whenever I want and can even get a digitizing program to go with it. I just wanted to make sure I enjoyed that part of the machine prior to dropping that much cash on the Bernina program.