your welcome doo itteshimashite
just doing a search on Google you will find many pages that have
very good sounding Soundfonts for Classical music.
As for Wave files that's a bit tricky, you have to have a program like Kontakt in order to take advantage of them, atleast that's what I know, but you could
create your own sound fonts or even use Awave Studio, you would have to make it an instrument. Percussion sounding instruments it doesn't matter unless you want to have layered drums(which of course you would want) <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />