Most todays digital piano's cheap or expensive will deliver what you are asking, but after 17 years professional piano playing on real piano's the cheap ones will not very long survive a real pianist.
Unless you were able to change your playing technique in other words hitting much softer!

Then after playing 17 years professionally and your plans to go professionally again I would anyway buy a top and sturdy model and make no concessions (but that's my personal opinion)

The weight might be a problem though.
Anyway just my thought's.

Forgot to mention;
While auditioning try out what happens if you play with much expression (tough to translate for me..) I mean from very soft to very loud...
The cheaper ones have huge gaps between this.
I must admit though that I didn't play the new models so things might have improved.



[This message has been edited by freddynl (edited 04-06-2006).]