Clif, Yes Colossus & Kontakt do respond to program changes but to slow for live performances. In addition, you would need to raise another instance of kontakt if you require more than one drum kit....I think.
So yes there is hope. If Esh is right that Bandstand is a much smaller version of Colossus things may load quick enough for live performances....including situation where instruments are changed within say a style or midi file as it is playing.
My guess is we are very close to a very good outcome.
Garritan's GPO and Jazz & Big Band are of a size with DFD to fit totally into RAM. Program changes in Kontakt could work here as well. The conversion of Giga's GM500 to kontakt may also work.
Rikki, I think you should abandon all your friends and your Yamaha and replace it with NI's Akoustic Piano & and a 76 (or 88) note controller keyboard. You just can't lose. You will never look back. You will forever be happy. You will sit back in your music room and smile as the world passes you by and others keep buying hardware only to do it again in a short few months. Plus it sounds better than most other pianos found in workstations or arranger keyboards. Oh, if you buy kontakt 2 then you get with it a very good version of the Steinway Pianos....and there are so many other better alternatives.
[This message has been edited by Frank L. Rosenthal (edited 11-09-2005).]