Game Developer magazine have released the results of their patented "Game Developer Salary Survey", which gives us an insight into just how much the average games developer gets paid.
And the findings reveal that, provided a dev still has a job, most positions in the field pay quite handsomely. According to the survey, the average salaries are:
Programmers: $US85,024 Artists: $US69,532 Game Designers: $US67,379 Producers: $US82,905 Quality Assurance: $US39,571 Audio: $US78,167 Business & Marketing: $US102,143
Note that these are the average numbers, and vary according to factors such as experience.