It's now been overshadowed by the Richard Milhous Spitzer affair, but there's a fairly grubby scandal in progress regarding the office of former state Comptroller Alan Hevesi, now under investigation for possible insider dealing and influence-peddling. Among the dramatis personae: Hevesi's sons Daniel and Andrew, both NYC politicians, and one-time "Mod Squad" star Peggy Lipton, described as a close friend of Hevesi chief of staff Jack Chartier.