It's all over the board, dependent upon institution, skill and market dynamics. I ran a f/x derivatives desk for an investment bank. While I won't discuss my personal pay structure, when I hired new staff, the starting salary was generally $75 - 90k plus bonus based on group profitability. The bonus is where everyone gets paid. It varies, but for a good trader with a two + years experience total comp should be > $200k. With five or more years of profitable trading and the right institution, you are looking at $450 - 1,000k. Prop traders can negotiate for 5 - 10% of profits, make $25 m for the firm, get a bonus of $1.25 - 2.50 mil.
Most places put a cap on salary, say $150k/yr max.
In the early days of f/x derivs there were a few guys who took home $10's of millions a year. Couple of famous names even made the front page of the WSJ and made more than their CEO's did in a few years! Not the kind of attention you want, really.
Then there are the chief dealers, corp sales guys and m.d.'s who can command a greater slice of the whole trading revenue pie.
In the past ten years, however, more bonuses have been granted in stock and options - and have big restrictions on time, employment, profitability and non-compete clauses. Fewer and fewer firms are giving out cash bonuses.
Cheers,