Good/bad/indifferent time to buy in to China funds?

Investment timing: what do you think of the timing at the moment for dropping money into China funds, or BRIC s? I'm very much on-board and up-to-date on the impending recession (or worse) in America, the ongoing housing collapse, the devaluation of the dollar, and growing credit woes, for what it's worth. I'm also aware of the need to carefully investigate the fee structure of any potential investment. I am fairly risk-adverse, but wanting to diversify and see if I can bring in a little higher average rate of return over the whole portfolio. The wrinkle here is that the currency I'd be buying in to a fund or funds with would be Korean won. (Let's say, if it's germane, that I'm thinking on the order of the equivalent of tens of thousands of dollars, currently making about 6%, basically zero risk.) The ones I'm looking at (although I am very much aware that 'past results are no guarantee of future performance') have averaged a 60%-100+% return in the past couple of years. Needless to say, that kind of thing is tempting indeed. Any hard info, links, or just opinions would be most welcome, as I'm still far from fully-versed in this stuff.