Web-Cam modifications for long exposures

Hi all. I am contemplating getting a Quickcam Pro 4000 and modifying it for long exposures. I figure I may get a little more imaging done on planets, etc. if I go that route. I have done a quick search of my recent Sky & Telescope and Astronomy magazines and could not find a good comprehensive step by step modification procedure. Can anyone in this forum point me in the right direction? I'm fairly certain this information exists somewhere, just can't seem to find it quickly.

Thanks
Mike V.

Here are a couple for the 3000, which is the same camera internally.


http://www.unm.edu/~keithw/quickcamPro3000mod.html

http://mypage.bluewin.ch/bm98/l3k/modification.htm

Good luck,

Mark