I've started getting into trackdays, and already have a Manfrotto Superclamp which I attach my Sanyo Xacti HD700 camera to:



The problem is, the camera case vibrates leaving an annoying sound over my track videos. It also has no external mic connector meaning I have to tape over the Xacti's mic opening. The video is pretty good quality though, at 720p and being small is good when taking on holiday.

You can hear the problem to a degree here:

Stowe Circuit

But a lot here:

Grass Autotest.

I think I'd like to sell it though and put the funds towards something with an external mic and which will be solid on track.

What can you guys recommend?