GOP leaders inthe House and Senate agreedlate Thursday on a compromise plan that would balance the budget within seven years, cut taxes by $245 billion and slow Medicare and Medicaid spending. "We have a deal," House Speaker Newt Gingrich told reporters, as he came out of a meeting with Senate Majority Leader Bob Dole, Senate Budget Chairman Pete Domenici andHouse Budget Committee Chairman John Kasich."You're going to love it," Gingrich said. "You get more take home pay." President Clinton, who favorsa 10-year balanced budget with fewer cuts in social services,has his veto pen ready.