CVpiano is very good tmo. But after a while it just stopped working here and now it won't load it's sample-pack anymore
I also have EVM Grand Piano. Sounds quite good but only useful for simple playing as it only has eight voices.
http://www.kvraudio.com/get/1097.html
There are also several nice pianos in ProteusVX
However, I still have to find a VST-piano that comes close to the multi-sampled grand piano that sits inside my Roland RD-150 (
http://www.rolandus.com/products/pro...?ProductId=324)