Need more detail. Can you upload the full crash report to http://pastebin.com/ and post a link here? Pretty much any crash will say KERN_PROTECTION_FAILURE, it's the details later that help narrow it down.
Where do I find these log files with the error reports?
You can also get there through Console.app.
Thanks for this, I have pasted the info here:
Any help would really be useful as this issue has created an unstable environment for us at a critical time in production,
First try updating your ID to 8.0.1.
Thanks for this, I have pasted the info here
OK. Larry's advice is good, but there are specific things to glean from your crash report. They may be like a wild-goose chase though:
1 PublicLib.dylib 0x016d2405 ProtectiveShutdown::~ProtectiveShutdown() + 17
This indicates that you should look at ~/Library/Caches/Adobe InDesign/ Version 8.0/en_US/InDesign Recovery/ProtectiveShutdownLog and see what it says (or upload to pastebin). It may or may not be particularly helpful...
With respect to your actual document, have you tried exporting to IDML and opening that?
Also, have you tried attempting to divide-and-conquer to find the source of the problem? Try using Pages (panel menu) > Move Pages to move document pages to a new document, and see if that helps you find the source of the problem.