Pretty much every GIG on my sample hard drive (note that an "instrument" in GIG-speak can be single an articulations of a sampled musical instrument):
* Various samples that I've collected over the last decade that I've used to build GIG instruments from. Some from free sources other from sample disks I've bought over the years.
* Free GIG instruments I've collected. (But the only orchestral oriented instruments are percussion.)
* Commercial GIG instruments from SampleTekk, PMI, VSL and Westgate (and an odd instrument from Sonic Implants).
One of my goals with the development of a SFZ engine is to be able to reprogram Kirk Hunter's libraries for it (I currently only own his concert strings for Kontakt). I.e. imagine having the $89 Saphire orchestra library available for LinuxSampler!
Ardour2, Qtractor, Linuxsampler, M-AUDIO Delta 1010, Axiom 61, Korg D12, AKAI S2000, E-MU Proteus 2k, Roland R-5, Roland HP 1300e, Zoom RFX-1000, 4GB RAM x86_64 Intel Pentium Dual 1.80GHz Gentoo Linux