Expectations are important, and ALL of the libraries mentioned here are "good enough". Have you worked with any libraries at this point (such as the Kontakt factory library, free libraries from Project SAM, even Sine factory freebies)? Reading between the lines, you may be setting yourself up for huge disappointment. There was a user here recently that had a very public tantrum on the forum when he found a few noises in Orchestral Tools samples after a $1000 outlay, claiming it made the entire library unusable. This is not a reasonable, adult opinion. There are folks that want shiny, perfect tools that could care less about making music, instead admiring the tools. The Berlin Berklee edition, which I own as a Berlin Orchestra complete owner is a stupid good deal at $100, but it won't be perfect for you. Nothing will.