Video Capture and storage

Hi,

I am looking at building a system that will capture SVGA or better video from a USB camera encode in H.264 or Theora, and save to an High Density SD Card 32GB. The system will be battery (maybe solar) operated, so control of the camera or controller can't happen over a wired network.

I found this with a google search:

Any ideas on what development kit I should use? Anyone have experience in this area?

Thanks, Neel