Tons of stuff to read, tons of stuff to learn. You got to love books and libraries, one of the things I miss most when I am in Asia. All in all over the last 3 days spent around $200-250 but got so much good stuff it was well worth it. Knowledge is power and seeing others artists creativity leads to inspiration and motivation to create art myself.
Note* I also picked up a number of DVDs (concentrated on documentaries to learn from) as well as CDs (mostly unknown singers, instrumentation and classical).