I'm planning a long weekend in Portland exploring the city and need some recs on good places to eat downtown. I won't have a car, so I don't know if transportation is going to be a problem. Any cuisine works for me. I'm on a budget, so cheap recs are welcome (and the holes in the walls tend to have such great food). But if there is something absolutely stellar that I can't miss, let me know too--I don't mind splurging once. Thanks.