4 nights in Atlanta, some help with where to eat? We've got some in mind...

My boyfriend and I will be in in Atlanta from Saturday April 11th-Wednesday April 15th. We have a number of places in mind that we'd like to go but would also love some help adding or subtracting as necessary. The 4 dinners we had in mind were Bacchanalia or Floataway (we haven't decided if we want to splurge), Restaurant Eugene, Watershed and Holeman & Finch. The problem we're encountering is that Sunday is Easter and none of these restaurants are open. Which should we forgo? Perhaps we can do it at Brunch instead? Also, do you know of restaurants that will be open Sunday night?

Coming from NY we're most interested in Southern style cuisine or anything that's using local ingredients. For lunches the only place we definitely want to try is Ann's Snack. Any other ideas? Ideally we'd like lunch to be on the cheaper side since dinner's will be pricier.

Thanks in advance for any and all suggestions, we really appreciate it!