Game Theory can be pretty interesting if they have good guests, but I think it kinda went downhill when it branched from Next-gen.biz. I'm sure Colin and Gary are cool guys, but in the podcast they often just come off sounding like pretentious dicks ;) (EDIT: And no, it's not just because of the accents :P) You might want…
Yeah, I'm the same. 1upyours, GFW, 1upfm, the Bungie podcast. The pranks the GFW guys get up to are great. If you haven't heard the GFW guys, I suggest you look up any episode involving whiskey nerd. Quality.
The various 1up podcasts are pretty good. Not gamedev, per se, though: GFW Radio (Shawn Elliot in particular) almost never fails to crack me up. 1up Yours Retronauts is fun if you know the game/franchise they're talking about that week.