QUOTE(muttley @ Oct 17 2007, 02:22 PM)

Don't short something that is going up in price (lesson learned hard way

). The time to short crude oil is when the price is already falling.
Tend to agree, unless you use a smaller position so can run a wider stop. Alternatively wait until it is very overbought. In the case of oil, it is now making new highs so shorting it is very risky as their is no obvious resistance level.
Re markets that are open whilst you are asleep, if you have reasonably tight stops then my suggestion is not to do it. (The main reason I don't trade currencies). One way around this is to set an opposing trade which is triggered automatically when your main trade hits a target price. That way you can set wider stops without incurring any additional risk and close both trades when you are awake. Effectively you are pegging your profit (or loss) but keeping the trade open.