Former VECO CEO Bill Allen, whose work on Ted Stevens' home is at the center of the senator's ongoing trial, is set to testify for the prosecution this afternoon.

Allen, who pleaded guilty to bribing Alaska state lawmakers, has been the jewel in the FBIs crown, providing testimony in trials against many of the legislators he once paid for votes.

Stevens' attorneys have worked hard to try to disqualify Allen's testimony, demanding medical records for Allen and accusing him of receiving $40 million for his cooperation with the government.

Allen is expected to testify to the $250,000 worth of gifts and services he and VECO provided to Stevens, which included home renovations, a car, a new grill and interior furnishings.