GarbageGoal
Courage
For any old WCW fans, I would suggest What Happened When. It's interesting to hear Schiavone's take on some of the stuff that happened back in the day. Although fair warning, it's probably not one you should listen to at work without headphones.
Also Something To Wrestle With Bruce Prichard for WWF/E fans. My one issue with Tony is that I don't think he knows as much because they kept in the dark most of the time.
Right now for me it's....
Doughboys
True Crime Garage
We Hate Movies
My Favorite Murder