We’re guessing many of our favorite media celebrity regulars have headed south with their families for spring break or to rev up from the endless winter doldrums that have left us feeling a bit grumpy. Today, the tables were packed with a cross section of Prada and Gucci suits, and the mood was definitely all business. Luckily, we got our boldface name fix Tuesday when lunchtime chronicler Diane Clehane broke bread with fashion maven Jaqui Lividini and the bustling dining room brimming with the usually eclectic mix of celebs. We spotted Marlo Thomas, Danny DeVito, Ron Perelman and Tommy Mottola in the mix. Some of the staffers were still buzzing about last week’s visit from David Hasselhoff, who most recently headlined a Las Vegas production of The Producers. Seems “The Hoff” made quite an impression. Says one fan of the tireless showman: “He looks great! If he’s had surgery you can’t tell — and believe me I’ve seen some scary ones in here. The guy is amazing!”

Here’s a rundown of today’s menu:

1. “Men Who Lunch”: BusinessWeek‘s Jon Fine (husband to our own mediabistro.com founder and CEO Laurel Touby), Radar editor Maer Roshan ABC News communications VP Jeff Schneider, Peter Himler, Arnold Huberman, Sirius Satellite Radio pr czar Patrick Reilly, Radar‘s Jeff Bercovici and Magazine Publishers of America’s Howard Polskin.

2. Casual chic: a tweedy Luke Janklow. The uber-agent was lunching with an unidentified jeans-clad beauty.

3. Univision’s Maryann Bannikarim and three guests.

4. Producer Jonathan Hart (Chicago) and four well-dressed gents.

5. Michael Fuchs and a bespectacled fellow who passed the time waiting for him by reading Variety.

6. Glamour editrix Cindi Leive and guests.

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New Career Opportunities Daily: The best jobs in media.

1. Gotham’s greatest local line-up — anchorwomen and reporters Peri Peltz, Jane Hansen (love the longer chic ‘do!), Rosanna Scotto, Penny Crone and Lynn White. We’d love to know what the headlines from this afternoon were after this crowd was through dishing and dining …

2. Producer Jonathan Hart and guest.

3. “Mayor” Joe Armstrong and Men’s Health honcho Dave Zinczenko. The always dashing duo chatted with today’s lunchtime chronicler, Diane Clehane, about their jam-packed itineraries. Joe is just back from his third trip with Habitat for Humanity where he was building houses (literally) in the still devastated areas of New Orleans. Says Joe: “It’s incredible. Thirty-thousand homes were lost where we were. People need to know there is still so much that needs to be done. It’s devastating.” The inexhaustible Dave is busy preparing for his first trip to the Oscars where he’ll hobnob with A-list agents and talent at the hot parties around town. It’s a tough job, but somebody has to do it … His Oscar pick? “I’m rooting for Scorsese.”

4. Power blondes Liz Smith and Lesley Stahl lunching with Christine Quinn (whose two discreet but imposing-looking bodyguards kept watch at the door). Could there be a 60 Minutes piece on the city council speaker in the works? We’ll have to ask Mayor Armstrong — — Liz pulled up a chair and joined Joe and Dave after her guests left and “closed the place” long after the rest of the lunch crowd departed

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New Career Opportunities Daily: The best jobs in media.