I stumbled upon this site Total Composer.com which has a few samples for sale and a few free downloadable samples among other things. The developer has just won the soundware division of the KVR contest with his entry of a complete orchestral library. The library is free but it requires the full version of Kontakt. You can use it with the Kontakt player but it has a fifteen minute time limit. Good enough for a peak.
They are all from public domain samples that he has added features to such as graphics and key switching. They aren't SFZ files which he said wouldn't have given him a full orchestral set so they won't import into Aria.
If your curious you might check it out. The guy won a pittance from the contest but maybe some recognition.