I have upgraded that last few halogen bikes I had to HID's or LEDs. It is not difficult and the results are worth it (in my opinion).
Changing the wiring so the low beam and accessory lights stay on with the high beam is a little more challenging, but not actually hard. I haven't done it on a Ducati, but the approach I would take is to wire the main lights directly to the ignition via a relay so bypassing the switches such that they are permanently on. The switches then simply turn the high beam on or off and have no effect on the low beam or accessories.