Going to put out a recommendation for 池袋なう, my favourite podcast. They don't really talk about anything in particular, just random stuff, but Apple products, anime and food are common themes. I like it because it has no structure and is just a guy and a girl talking. I find it pretty funny as well.
http://www.voiceblog.jp/ikebukuronow/
http://www.voiceblog.jp/ikebukuronow/