Excellent collection my friend and I do suggest Gene's book, it is quite good.
I don't by MA books about MA per say anymore, unless it is a MA I don't have a book on.
I have old books and some new ones.
I have Dynamic Karate by Nakayama
The Uechi-ryu book by Mattason.
Quite a few Aikido books by O-sensei ( His Budo one is excellent).
I have books by Steve Sanders ( Championship Kenpo) and Parker's series "Infinite insights into kenpo".
I also have a huge DVD collection too.
I have old taiji and bagua books.
I really need to catalogue my collection it seems, LOL !!