In the meantime, one big question I'm still having (mostly directed at Nikolas): What are some more up-to-date and better sounding alternatives to the Edison Orchestral VSTi I used?
Sorry... forgot to reply to this...
It largely depends on your budget, I'm afraid.
In terms of 'full orchestral packages' there are a few options available (ascending price):
GPO: Garitan Personal Orchestra. A starting package with not so great a sound, but very cheap and user friendly.
EWQLSO: EastWest Quantum Leap Symphonic Orchestra. Comes in 3 different packages: Silver (not sure if this exists anymore), Gold and Platinum. Full orchestral sounds, full libraries, full sound, excellent value for money.
VSL: The Porsche of the sample libraries. Hugely expensive, the full package must be around 10,000$ (!!!!!). 'true legato', lots of velocity layers, weird instruments, everything is there.
Now for more individual choices there are other companies, which provide a wealth of options.
LASS: Los Angeles Scoring Strings. Strings alone, an AMAZING product, that sound brilliant.
HW: Hollywood strings. Another amazing product that sounds FABULOUS. Downside is that it's huge (270 GB I think).
For choirs there's:
EWQLSC: EW QL Symphonic Choir. Able to sing letters, albeit not very good, but still great sounding.
VOXOS: Something like the above, brand new, and btw our own Greg Schlapfer (Gregjazz, or Geofkhan over here), did the recording and programming of that!
Tonehammers' Requiem: Another amazing library for choirs...
For pianos there's also a wealth of choices:
Garritan Steinway: While GPO is not exactly good, this piano is AMAZING!
Ivory: v2 took the standard WAAAAY up the top. Brilliant piano (a little buggy though)
QL Pianos (quantum Leap pianos): One of the best choice, again HUGE in size.
pianoteq: The tiny package of around 20 MBs (!!!!), is based on physical modelling methods (a synth basically, which models real pianos, but does it REALLY good).
In general there are tons of other choices. Here's an idea of some pros talking about this very issue: http://www.vi-control.net/forum/viewtopic.php?t=21342&start=0
Hope this helps, although you'll have to google the names yourself, I'm afraid...