You’ve made it through the graduation ceremony and survived all of the parties. Now it’s time to think about the next step: landing that first big job. The Class of 2007 has excellent job prospects. Employers in every industry plan to hire 20 percent more new college graduates this year than in 2006, according to the National Association of Colleges and Employers. Interviews are notorious for being the most nerve-wracking part of a job search. But career coaches and employment experts say keeping in mind a few tips can help. So, with apologies to David Letterman, here are some tips: