Unfortunately, I don't have such a contact at present. [But I'm always open to interviews and such!
]
Here's another little 'secret' I'll pass along. Many of us are making our own covers. A big part of graphic design is typography. It's those little subconscious improvements that can make all the difference. Here's a great video on typography I found a while back on youtube:
http://youtu.be/XuTuCmjSbZI