Emotions ran high actually, more like medium when the cast and producers of NBC's Friends gathered on the show's set Tuesday for a farewell press conference with TV critics. As they prepare to shoot their final scenes next Friday, "We're like very delicate china and we're speeding toward a brick wall," said Jennifer Aniston. Added Lisa Kudrow: "It's a deeper loss than I was expecting." Among the interesting tidbits that came out of the nearly hour-long Q&A: NBC president Jeff Zucker denied that he offered the cast $2 million apiece to star in a reunion special, but joked that he's prepared to give them $4 million; Courteney Cox, who is due to give birth in July, is already showing; David Schwimmer may direct several episodes of Matt LeBlanc's spin-off Joey next season; and Paul Rudd drives a white Mitsubishi Diamante. I know this because he was seen driving off the Warner Bros. lot in one shortly before the session began. Shoot me an e-mail if you want the license plate number.