I have to stop looking at speakers on Parts Express before I buy $500 worth of speaker components so I can build custom speakers using what I've learned so far in my Audio class. I really want to do it, but I think I had better wait until I have a job and can afford that sort of thing. Hopefully my knowledge that earned me a 49/50 on my last test will stay in my brain long enough after I've graduated, and of course I'll always have Leech's Audio Engineering book.