I recently uploaded a bunch of new material to Django in June's "Get Ready Musically" pages. The primary purpose this serves is to create common ground for everyone attending this year's Django Camp. But the material is available to all: lead sheets by Jack Soref, rhythm tracks by Denis Chang, intro videos by Sami Arefin, and more. You'll find it all here:djangoinjune.com/For_musicians/getready_Camp2014.html
Help yourself, have fun, and I hope to see you at Django in June in just a couple months!