I don't have a membership to Sam's, but I hear that they do have some great deals on meat or bakery items (other items too, but those are the two I hear about the most) . Of course, you can check it out yourself and save yourself $20 off a new membership before 8/1. Regular membership is $40, so you will get it for $20.
In order to get the deal, you just head into your store and sign up for a membership. If you have any questions, you can call your store or go to Sam's Facebook page HERE.