Currency trading is a zero sum game. If anybody found a way to reliably beat the odds in this billion dollar market, do you really think they'd sell it this cheap? Unless you're very lucky you'll lose money after fees.
The money is in the "fees". Just ask Soros. The more risk in currency the higher the fees. The BitCoin Xchange will be were the money is.
But doesn't that defeat the whole purpose of an international free currency.
And with time, a ForEx for BitCoin makes no sense. There is a finite amount of BitCoins. Once fully deployed they would hold a value, especially when their is no intrinsic value in the BitCoin. Absolutely no value whatsoever. You could at-least burn your dollars to keep warm or light a cigar. It is a purely Trust system.
A BitCoin at the end of the chain will hold its value. The only way it would loose value is if people stopped using it. Once 21 Quadrillion Coins have been dispersed. That's it. No more.
If there is no more supply and demand is constant, everything is stabilized. Almost like the Gold Standard but better. If you own a large amount of BitCoins and flood the market to hurt the BitCoin, you hurt yourself on the down slope. The interesting thing is the vice versa also works. If you try to buy up all BitCoins in existence, you also hurt yourself.
That is the nice thing about a finite money supply. The problem with gold is that there wasn't enough of it to distribute and the distribution was a problem in of itself.
Don't ForEx a BitCoin. Short Sell other currencies as people buy BitCoins. Start with weaker currencies of a stable nature and have internet access abound.