HOUSTON - Yet another clash of Enron trial titans is on the horizon, but it may be less explosive than the first. While jurors deliberate the outcome of the fraud and conspiracy trial of Enron Corp. founder Kenneth Lay and former Chief Executive Jeffrey Skilling, Lay is on trial again without a jury on charges stemming from his personal banking. The 64-year-old former chairman spent six days on the witness stand during the conspiracy trial, often combative and contentious with federal prosecutor John Hueston, who secured the indictment against Lay nearly two years ago. Lay is expected to square off...