The Dallas school district's former technology boss took the stand Wednesday in his federal corruption trial to deny rigging bids for his co-defendant's company but admitted accepting the computer vendor's generosity, including unfettered access to two sport-fishing boats.

"In hindsight, it probably wasn't a good thing to do," said Ruben Bohuchot, the former administrator.

Looking back, Mr. Bohuchot testified, he feels that he might have been taking advantage of Frankie Wong, once the district's largest technology vendor, whom he described as a friend.

On direct examination by defense attorney Mike Gibson, Mr. Bohuchot acknowledged that Mr. Wong paid for airfare, golf games and meals during vacations to Key West, Fla., and trips to the Houston home of the Micro System Enterprises boss.

He also admitted that Mr. Wong, 47, bought and paid operating expenses on the two boats, Sir Veza I and Sir Veza II, and made them available to him two or three times a month in season and for at least one expensive trip to a Florida deep-sea fishing tournament.

But Mr. Bohuchot denied charges of money-laundering and bribery accusing him and Mr. Wong of corruption in connection with school programs that receive millions of dollars in federal funds.

Mr. Bohuchot, 59, is also charged with filing two false income tax returns.

The prosecution rested its case Tuesday evening after testimony from William Coleman, also a former Dallas school administrator, who had been indicted along with Mr. Bohuchot and Mr. Wong.

Mr. Coleman, who faced more than 20 years in prison if convicted of the original charges against him, testified for the government as part of an agreement in which he pleaded guilty to a single misdemeanor, attempting to influence a grand jury.

After leaving his job with the school district, Mr. Coleman said, he worked about 40 hours for Mr. Wong's company on a contingent-fee basis, helping prepare a proposal for a district contract that Mr. Wong's company won.

He said Mr. Wong would e-mail him every couple of months telling how many computers had been installed under the contract, and he would bill Mr. Wong's company on a fee-per-computer basis.

Those fees amounted to more than $200,000, Mr. Coleman said, and he deposited the payments into a consulting company he set up while working with the Detroit, Mich., school district.

Mr. Coleman said he loaned $10,000 from that account to Mr. Bohuchot's daughter and son-in-law to help them move to Texas and pay some bills. Later, he said, Mr. Bohuchot told him the money would not be repaid, although they had not discussed that.

"I felt pressured," Mr. Coleman testified. "I felt I didn't have a choice."

Mr. Coleman ran into legal problems when he later produced a demand letter to make it appear to a federal grand jury that the transaction was a loan. He testified Tuesday that this was not the case.

Prosecutors alleged in the indictment that this constituted money laundering, as did other instances where money was passed among parties involved in Mr. Wong's businesses.

On the stand, Mr. Bohuchot denied any wrongdoing Wednesday morning.