I sent this to someone else a while back...but...here ya go.
I would look at the Omni hotel in CNN center. Its literally adjacent to Phipps Plaza and Centennial Park. You can get it for between $100 and $150 a night, and the hotel is quite nice (I have actually stayed there a few years ago.). Easy walk to the Dome, easy walk to the Aquarium and the World of Coke, if you decide to do that, and easy walk to a MARTA train station. When booking, ask for a view of downtown / Centennial Park. You may have to pay a tad more for the room, but the view at night will be worth it!
Two blocks south is the Glenn Hotel. I have only walked by there, never been inside, much less stayed there. They do have a rooftop bar there, and I know a few friends who have said it is quite nice (good place to conduct business), but alas, I have never been.
There is also, as I recall, and Embassy Suites to the north about a block, also off of Centennial Park.
But, personally, I would go with the Omni.
Also, if you use the MARTA train (NEVER use the busses) to get around the city while here, be sure to check their operating hours before the trip. They keep changing them...
The Aquarium or World of Coke, as they close early on Sundays...6p, I think...
As far as restaurants to check out, I would consider...
$$$ Bones Steakhouse
Best steakhouse in the city, I think. It isn't cheap (think $50 to $75 per person, if you get a low priced wine), but well worth it!
It is in Buckhead. You can get there using the MARTA train and get off at the Buckhead Station, and there is a rather pleasant 3 to 4 block walk to the restaurant. I would do that, rather than messing with parking in Buckhead on a Saturday Night (which will all be mandatory valet) but that is just me.
$$$ Woodfire Grill
One of my personal favorites...it was run by Kevin Gillespie, a Top Chef finalist a few years ago, but he recently departed. However, the new Exec Chef there (Tyler) is excellent!
The menu is excellent, but they also do a chefs table here that is $70 for 5 courses and $90 for 7 courses (per head), excluding wine. I would HIGHLY recommend the latter. I have done it twice.
This is in Piedmont, and you won't be able to easily get there using the MARTA train, however, parking isn't nearly as crazy as Buckhead. Taxi would cost around $30 round trip...however, I would just drive there or stop there before you get to your hotel.
$$ Chateau de Saigon
Vietnamese food with a French twist. Sounds weird, until you consider the history of Vietnam. Anything and everything here is excellent.
This is a haul from downtown, as it's over by the CDC. No way to get here by MARTA train. So, car is the way to go.
$$ Meridian Restaurant (yeah, I had to google the name)
I have not eaten here, but it is the restaurant in the Omni hotel. I have always known it as "that restaurant in the Omni hotel". That's all I can tell you.
$$ McCormicks
This is just south of the hotel. Good seafood, as I recall, but haven't eaten there in a while.
$ Park Bar
Highly recommend this place, if the two of you are ok with the bar scene. It's a very well run little spot, and looks beat up from the outside, but it isn't on the inside. Bar style food (burgers, wings, etc). Very laid back atmosphere. Just tons of fun. It's a block east from the hotel.
$ Googie Burger
I took the kid here when we went to The Kids Museum. It is a fun little place. Burgers and milkshakes. Good classic diner food. I mention it because it is about half a block from the hotel.
$ Han Il Kwan
This is an authentic Korean BBQ place. Be sure to request a table with a BBQ grill in the middle (about half the tables in the restaurant are like this).
The place is also a hole in the wall, so don't expect a flashy experience. But, the food is excellent, the servers are friendly, and I enjoy every visit. I normally get Bulgogi (marinated beef) and Dak Bulgogi (marinated chicken). It comes with a plethora of sides, and lettuce. You make your own lettuce wraps!
Fun, reasonably priced, and delicious.
However, it is a haul from downtown, being located in Doraville. The only reasonable way to get here will be by car.
$ The Varsity
Ok, this one I don't like so much. The food is good, the prices are reasonable, but something about it just doesnt attract me. I much prefer the one in Athens (UGA). This could be because I am a UTenn fan though!
However, this is the original, and is a Georgia (Tech) tradition. It's worth checking out, and is certainly "football fare"!
If you get off the MARTA at the North Avenue station, it is one block west.
$ Gladys Knights Chicken and Waffles
Just good ol' Southern Soul Food. Great prices and unique southern food with a twist (this ain't Cracker Barrel). If you hop the MARTA you can get off at Civic Station and it's a short 2 block walk to the restaurant.
I am sure I have left stuff off here, but I hope this helps and is what you were looking for.
