Actually when I came across your thread I did a search here in the forums and I found a few threads about Opera crashing X and freetype.
searching the web I see a few too. Sadly none of them have been solved or even have a clue, so you might be on to something. It also appears
to be happening on AMD64. Now don't feel to bad my Opera on x86 does doesn't crash, but, it does not handle java script well at all, half the websites
I frequent that use it don't even show up or the page never finishes loading. It's always irritated me

, I've kept firefox around for those rare times

I'll keep looking
Doing what you like is freedom.
Liking what you do is happiness.