Stumbled upon this the other day: Free mobo with Am3 processors. (Although, you have to go in to the store..)
http://www.microcenter.com/specials/promotions/0810_AMDbundle.html
Edit: Updated 8/12
http://www.microcenter.com/specials/promotions/0810_AMDbundle.html
Edit: Updated 8/12
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