VFXBlog has an interviews with VFX Supervisor Pablo Helman about the work in Jarhead and VFX master Harry Walton who discusses his career including stints at ILM and Tippett Studio.
You can read the interviews here:
Also, Scott Squires has already posted several podcasts dealing with several aspect of the VFX business and process:
Effects Corner: Moving Camera
Effects Corner: PostProduction
Effects Corner: Visual Effects Career
Effects Corner: Walking Pants (Invisible Man) Breakdown Video Part 1
Effects Corner: Walking Pants Breakdown Video Part 2