Unused Big Band Sheet Music?  

Hi
I am looking for some sheet music for my band.
We play big band/ jazz sort of music (think Glenn Miller, Count Basie) and we are in desperate need of some more music.
We do it for the love of it, not the money, so we have limited funds to buy new stuff.
I was wondering if anyone has access to music they don't play anymore. For example, bands no longer playing, or schools.
I would be willing to negotiate for the cost of shipping, but I am afraid I am unable to offer much (if anything) in the way of payment.
Please have a think about it and let me know.