Not bad, I think a little production work would bring things up a notch.
I like that the videocast is short, I get bored with long ones. I think you need 2-4 second intro with just a title and some kind of music. I would shoot the show without the curtain in the background, using the monitor wall as the background instead. There is a constant noise through the video, I believe a computer fan. Maybe move the camera away from this source.
As for the content, titles would really spruce things up especially when showing game footage. Watch some G4 videocasts for examples of this. At the end of the videocast, maybe run down some bullet points about the games your are covering to sum things up, you know:
* Two unique sides
* Unique build system
* FPS action
* Low system requirements
Those are horrible examples btw, you get the idea.
Good luck man.