Since I got GPO a few years back I have being using the bundled Cubasis VST 4. I understand this has been discontinued for some time, so I want to replace it with an up-to-date equivalent. I use GPO, JABB and the new authorized Steinway with Windows XP. I would like to be able to use more than 3 instances of Kontakt player (3 is the limit with Cubasis VST4) to accommodate full orchestra score and authorized Steinway. So I would be interested to hear what other GPO users recommend and will be grateful for any feedback.