My parents are having their 25th wedding anniversary this year and my sister and I wanted to take them out to dinner to celebrate in Philadelphia. Obviously we want the dinner to be really special and memorable but we find ourselves in college and well, relatively poor. Thus, restaurants like Vetri, Lacroix, La Bec Fin, and the Fountain seem slightly out of our price range. So what we're looking for is something comparable to these establishments but more affordable to suit our college-constrained budgets (think max $400 with tip). Suggestions appreciated.