Moved to the InDesign forum. They will be able to help you here.
Have you tried deleting your Preferences and Caches, and then launching InDesign? There is an InDesign FAQ about this here http://forums.adobe.com/thread/526990?promoid=KBHIZ.
Aside from Ken's advice above, crashes on launch can be casued by a lot of different things, and you Mac folk are fortunate to have the crash reporter available to help us pin it down.
Please post the crash report on pastebin.com and put a link to it here. No promises, but we may recognize the crash pattern and be able to tell you what is causing it.
You mentioned you just upgraded to CS6. Waht version did you run before? Did you upgrade the hardware or OS as well? Do you have a font manager and did you update that?