I have had my Snow Leopard Apps crashing a bit lately... I'm suspicious of 10.6.1 update... I just did a permissions repair, and oh MY - I have NEVER seen SO many repairs (too many to copy & paste).
See the log here - is this why it has been crashing??> I seem to recall that the crashes became more frequent AFTER the .1 update... I should have repaired before now!.
http://pastebin.ca/1570222