I use hardware—I have a Roland RD-700NX and all my piano sounds are from the on-board bank. I've heard some spectacular work out of Pianoteq, but I'm not familiar enough with the plugin to direct you to success, though I'm sure the resources are available for your Googling pleasure.

Yes Roland is the king for Piano - I tried one out before I bought The Casio CPD-120, cost about £1200.00, It was awesome, lovely touch and sound, the best.  I concluded that I only wanted something with Hammer action and could sample as many plug ins as possible.  If on the other hand it was my main instrument and I made money from it, Roland would have been my first choice. Second choice probably Kurzweil, superb value for money.
Here is another track I recorded influenced by moonlight Sonata I wrote, better tone on this recording I think
http://forum.bandamp.com/Audio_Review/9020.html
CHEERS