JupiterBroadcasting (http://www.jupiterbroadcasting.com) has alot of really good podcasts, it may not necessarily make you a better software engineer, but at the same time it just might.

One's to keep an eye on: Linux Action show, http://www.jupiterbroadcasting.com/show/linuxactionshow/ Coder Radio, http://www.jupiterbroadcasting.com/show/coderradio/ TechSnap, http://www.jupiterbroadcasting.com/show/techsnap/