The Daily Tele has this story on how the Raiders went way over their salary cap last year and are now being hit by a big fine. Most of it seems to not to be over paying their big players, which causes most salary cap infringements, but their ability to declare and pay fringe benefits, over use of second tier players, and deferring payments until after the season.
So a decent accountant should probably be able to keep them out of strife this year.