Hi Beaky...firstly, I'm sorry to hear of your wife's health problems...it must be very stressful dealing with it, especially with the way USA health care is set up.

I think you made a wise decision getting the PX-330...I've not heard any key wobble issues with that model, and I think the sound will be a big improvement overall.

Plus, it still is very light...and, it has real MIDI!!

Looking forward to your impressions.

Ian