Sibelius Sound Libraries!

Hey guys, I recently got GPO for Sib and it's a big step up for me, but still my scores don't have the realism I ultimatly want. I was wondering if any of you know better sound libraries that I can use with Sibleilus and if so, where I can find them?

Thanks for any help!

Well, it depends on what kind of money you are willing to spend. If you want proper realism you'll have to get your piece recorded by real instruments, sound libraries will never sound totally like the real thing.
If you do want to spend lots of money try EWQL platinum or Vienna Symphonic.