I've been into arranging and composing for orchestral music for a few years now, however, my music is usually fully computer-rendered (ewql), so I don't have any practical limits of how many instruments I use.
Well I'm trying to not be completely off, however, in a few of my compisitions I use a lot of violin voices (like, melody w/ octave + 2 voices harmony + 2 voices staccato for about 8 bars. meanwhile, two voices violas and one voice cello/cbs). Now a few of my pieces are actually to be performed every once in a while, however not by an overkill orchestra with like 100 violinists.
So, my question is, how many voices for orchestral instruments, especially violins, are "okay"? How many players should there be for each voice? I haven't been able to find any good resources about this yet.