Since I am in the same time zone Nate, I have several shelves of good steelhead books to suggest and lend you.
Trey Comb's books (I have three) are a great place to start. I have a few others by authors I can't recall at the moment worth reading (advanced flyfishing for steelhead, steelhead on the fly, etc). Pattern books include Kent Helvie's book, and Trey's steelhead book has a lot of patterns in it as well.
I'm sure the PNW contingent will provide a great list of references as well...