RAY Romano had a good time in Las Vegas at HBO's "Comic Relief" last weekend. But his wife, Anna, had even more fun, he told The Post's Mandy Stadtmiller in the green room at Caesars Palace. "She's getting free stuff and she's seeing the 'Desperate Housewives' men and the 'Entourage' men," Romano said after his performance to benefit Katrina victims. "She's seeing all these sexy men and then later she'll go back to the room with me. So if she's not too drunk, it may be a day that I circle in my calendar. You figure it out!"