SPLIT
Two years after their separation, actors Dermot Mulroney, 43, and Catherine Keener, 48, are ending their 17-year marriage. Citing "irreconcilable differences," Mulroney filed for divorce in L.A. June 8. They have a son, Clyde, 8.

BIRTHS
Former Mad TV cast member Nicole Sullivan, 37, and her husband, actor Jason Packham, 34, greeted their first child, son Dashel Pierce, in L.A. May 12. A rep for the actress (who also appeared on King of Queens) says, "Both Mom and Dash are at home, happy and healthy." ... Love-all: Tennis champ Lindsay Davenport, 31, and her investment-banker husband, Jonathan Leach, 34, welcomed Baby No. 1, son Jagger, in Newport Beach, Calif., June 10. The new mom's rep tells PEOPLE, "Jagger is healthy and doing great." ... Czech-born model Eva Herzigova, 34, gave birth to son George Marsiaj Herzig—her first child with boyfriend Gregorio Marsiaj, an Italian businessman—in Paris June 1.... Access Hollywood cohost Nancy O'Dell, 41, and her husband, business executive Keith Zubchevich, 38, said hello to daughter Ashby Grace in L.A. on June 11. "We are beyond elated," O'Dell tells PEOPLE. "Also I love epidurals."

EXPECTING
Without a Trace star Poppy Montgomery, 35, is awaiting her first child, due in December, with her boyfriend of nearly three years, actor Adam Kaufman. An elated Montgomery tells PEOPLE, "It's so crazy. I'm like, 'Ooh, my God!' I can't believe it." ... ER's Mekhi Phifer, 32, and fiancée Oni Souratha, 34, a fashion designer, are prepping for their first child in December. (Phifer also has a son, Omikaye, 7, with his ex-wife, actress Malinda Williams.) The couple plan to marry next year.

LEGAL MATTERS
Mary Winkler, 33—convicted of voluntary manslaughter in the 2006 shooting death of her husband, minister Matthew Winkler—was given a three-year sentence in Selmer, Tenn., June 8. She will be eligible for parole after just 210 days, five months of which she has already spent in jail. She can serve 60 days of her sentence in a mental-health facility, meaning she may spend as little as one additional week behind bars. Her three daughters are currently living with her late husband's family, who have filed to terminate her parental rights and adopt the children.

ANNOUNCED
Sean Connery (inset, right), 77, revealed June 7 that he will not reprise his role as Dr. Henry Jones, the father of Harrison Ford's character (inset), in the fourth Indiana Jones film, due out next May. Connery, who quit acting in 2005, said in a statement, "In the end, retirement is just too damn much fun."

REUNITING
Six years after their breakup, the Spice Girls are preparing for a reunion tour, sources close to the British quintet tell PEOPLE. "It should be happening in December," says an insider, who adds that Geri "Ginger Spice" Halliwell (far right), 34, and Emma "Baby Spice" Bunton (second from left), 31, have been in the studio writing new songs. The other members—Victoria "Posh Spice" Beckham (center), 33, Melanie "Scary Spice" Brown (fourth from left), 32, and Melanie "Sporty Spice" Chisholm, 33—are also expected to participate. "They want to do a worldwide tour," a source says.