Thanks for the multiple advices.
Yes I should thread carefully in areas I don't understand, and this is why I am happy I have found this forum. 85% of my investments are in the Canadian market in things I think I understand sufficiently, with 40% in fixed income - so I am not totally irresponsible - despite my questions.
It seems to me that I ought to diversify a little out of Canada. For now, I have about 15% in Claymore International ETF's (CIE, CMW, CBQ), iShares XIN and Mackenzie Cundill Recovery.
I think 15% out of Canada is not high enough. Without getting into discussions about various speculations on the $US and $Can, for which I am not qualified; just in the name of diversification, I would have liked to have some exposure to other currencies.
For instance, I believe the CBQ ETF would benefit if the Chinese Yuan is un-pegged - is this correct? I would like to have some exposure to this kind of events, just in case. And if the currencies remained pegged, there is no harm in investing a little in these countries anyway.