~~~~~~~~~~~~ is selling RARE Instruments for Giga at 19.95 down from $400+. A great deal for sure for ethnic instruments.
Scarbee's bass libraries are amazing. www.scarbee.com Get the Rhodes as well :-)
For acoustic guitar I own Matt Ragen - sounds good for sampled guitar - however, guitar is very difficult instrument to sample and control realistically. Many a poster here has written - "get a guitar player" - which I would agree with.
There are many libraries that are packaged with a sampling engine as well that appear very sophisticated - I have no experience with them - Real Guitar, Vir2, Chris Heins Guitars, Scarbee's new bass library, Trilogy Bass lib (received great press), etc.
I have limited time and budget so, like you I think, am still committed to and seeking out great libraries for Giga (where I know my way around and enjoy having everything in one environment).