I have had pretty good luck with making my own simple camera mounts.
They are easy to build. First, 99.999% of cameras come with a screw
tripod mount on the bottom which is a 1/4" bolt with 20 threads per
inch (commonly called a "1/4-20", pronouced quarter-twenty). Get
yourself a 1/8" thick piece of aluminum about 4" square. Drill and
tap a 1/4-20 hole in the middle. Screw in a short (about 1/4" long)
1/4-20 bolt into the tapped hole. Alternately, you can use thinner
aluminum, drill a through hole and put a nut on the bolt between the
aluminum and the camera.

Attach this to your glare shield with gaffer's tape (used by the movie
industry). Its as strong as duct tape but doesn't leave sticky
residue. Here is a source. http://www.goodbuyguys.com/catalog/p...products_id/51

You may have to play with bending the aluminum plate if your glare
screen is not flat. I have a DG and it's instrument pod is perfectly
flat on top. Screw on your camera. You may have to play with to get
it both tight and oriented in the right direction, either forward or
at the wing tip (or back at yourself!).

Here is a video taken by myself with my digital camera following a
friend in for a landing. http://www.youtube.com/watch?v=VCPMAAF7pMg