SANTA MARIA, Calif. -- As jury selection begins Monday in Michael Jackson's trial on sexual molestation charges, some journalists worry that they have already stumbled into uncomfortable new territory. Their concern: an arrangement that could require television stations and newspapers to pay $800,000 or more to Santa Barbara County to defray costs of the trial.

Though some journalists agreed to the payments, others said they far exceed what other jurisdictions have charged and smack of "pay-to-play journalism." More ominous, , they said, is that the payments continue a pattern in which local officials overseeing high-publicity cases chip away at the long-established principle of free access to public courtrooms.

County officials -- facing a trial expected to cost millions of dollars -- respond that they are only trying to recoup extraordinary costs for accommodating an international media horde. Otherwise, they said, local taxpayers will get stuck with the bill.

"We can support it," said Bob Nisbet, assistant director of Santa Barbara County's General Services Department. "We have specific accounting to support the charges. We are certainly not making money on this."

But even as jury selection begins, the consortium of news organizations that agreed to the payments in May is demanding that the charges be renegotiated.

"We feel strongly that we should not be paying a media tax, that there is a real danger to First Amendment principles," said Ted Boutrous, a lawyer representing many of the nation's major news outlets, including the Los Angeles Times, the Washington Post and the television networks. "It's become clear that what they are charging far exceeds any costs that could be attributed to special needs of the media."

Disputes between government administrators and journalists have become somewhat routine as courtroom spectaculars increasingly have become a staple of the media's diet.

In the O.J. Simpson murder trial -- a media pageant a decade ago -- Los Angeles County officials discussed recovering some of their enormous costs. They eventually made modest demands: charging the media to rent a parking lot across from the downtown criminal courts building. Television and radio stations erected a massive scaffold and broadcast platforms that became known as "Camp O.J."

City and county officials in northern California made a much bolder attempt to get the media to share expenses in last year's Scott Peterson murder trial in Redwood City -- one that would have cost each of the television networks nearly $100,000 for services.

Under a scaled-back plan, the county collected $75,000 over 10 months from TV, radio and print outlets.

By the time Peterson was convicted and sentenced to death in December, local officials and many of those who covered the trial agreed that they had worked out a fair compromise.

But some worry that the Peterson trial helped cement the trend toward court managers looking at the media as cash cows to be milked to pay for expensive trials.

"We come roaring into these small towns, and I think it just looks to them like one big thundering herd. And, to them, one with very deep pockets," said Jennifer Siebens, West Coast bureau chief for CBS News. "We are not deadbeats. We will pay our share. But we want to know what the real costs are."

An alliance of newspapers and television broadcasters agreed in May to $7,500 daily payments to cover Jackson, but the arrangement has been informal. The Board of Supervisors exempted Santa Barbara County news outlets from paying, reasoning that locals would have covered the courts anyway. Some out-of-town publications and stations have refused to pay.

For those who have footed the bill, the charges have been about $125 per court day for each newspaper and $300 for each national television outfit. Santa Barbara County had collected $114,750 for pretrial coverage by last week.

At the current rate, billings would grow by $750,000 if the case dragged on for five months, as some believe it could.

The county breaks down the $7,500 daily charge this way: $4,300 for six or seven sheriff's deputies to corral and manage the press; about $1,200 for maintenance workers, custodians and management; and $2,000 for physical improvements such as barricades, portable toilets and a revamped "overflow" room for extra journalists.

Some reporters protest that the charges they are being asked to pay for one or two days of coverage in Santa Maria would have gotten them an entire month at Peterson's trial in San Mateo County. In the Northern California case, for example, the media picked up the cost of just one bailiff, who kept watch in the media overflow room.

Media representatives acknowledged that the Jackson trial extravaganza would be harder for police and public officials to manage. Nearly 1,000 reporters had signed up for credentials as of late last week, more than the total who covered the Peterson trial during its extended run.

Several newspeople say they worry that they are being asked to pick up the costs of policing the thousands of Jackson's fans who are expected to swarm the town. On the day he was arraigned one year ago, Jackson arrived at the courthouse accompanied by a fleet of fan-packed buses dubbed the "Caravan of Love."

Print reporters, in particular, grumbled that even when the crowds dispersed for dry evidentiary hearings that required little policing, they had to continue paying the county $125 a day.

"This sets a precedent that is so bad," one journalist said. "I don't want to be stuck paying when nothing is happening or for the police to manage the Caravan of Love."

Times Managing Editor Dean Baquet declared himself "really uncomfortable" with the payments and said he would like to find a way to "get out of" the arrangement.

"We are not covering this trial because we are a commercial enterprise," Baquet said. "We are covering this trial because it's a public event of interest to our readers. And we're covering it in a public place."

Media representatives said government officials in Santa Barbara County should not overlook the many other monetary benefits their presence will bring to the area. Santa Maria expects to take in $36,000 a month by renting parking and office space to national media outlets.

Many hotel rooms in the area are booked solid for the start of the trial, and owners expect restaurants and bars to be packed with hungry and weary members of the fourth estate.