I'll just throw in a vote that (on Safari 2.0, this is) neither of these things crash my browser. I think that it might be reparable. I think two steps are in order:
1) Try first -- I know you emptied cache and all, but if you have not used the "Reset Safari" option in the Safari menu, try this first.
2) If that does not work, you need to go on a plist hunting expedition. Export and save your bookmarks in case you lose them (just on the safe side). I think the file you want to trash is ~/library/preferences/com.apple.safari.plist, but there may be more. You should have Safari closed while you delete it, and then re-open Safari.