EXS 24 Logic Sampler Users Group

Atmosphere will never go out of style.... you should definitely get it.   
There are so many textures to pick from, it'll make your head spin!

Soundsonline.com also has a few atmospheric libraries, and you might also 
want to check out sonymediasoftware.com as well, for loop libraries -- they have 
a couple interesting atmosphere-based ones (ACID-ized loops will work through 
Logic's loop browser, just like apple loops).   There's also the Liquid Cinema 
series that Jeff Rona put out, I think through MOTU's website.    Break out 
the credit card and start shopping!

Kerry