Bolder Sounds are a developer for Kontakt and ESX 24, mostly specalising in low cost acoustic and folk type instruments. They have a sale with 25 to 60% off.
http://boldersounds.com/
 
They have also just released a new Banjo library. I just watched the demo/instructional video and this looks like it does for Banjo what Orange Tree has done for Kontakt guitars. And its only $40! (for a limited time)

You pipped me to the post Glen, ol pal. I got that email as well and, like you, think the new banjo library is very good indeed.  And, until the end of the month, on sale for 40 semolians.  A great deal.

While you're checking out Bolder Sounds, be sure to snag the Music Maker freebie. It's surprisingly usable (try doubling it with an acoustic guitar).