Tybee Island has fireworks displays as does River street.
(Here in the hood we got firearms displays.)
You should hear this place on New Years! Woo-Hoo!
I'd recommend Tybee if you like the ocean.
Many good restaurants at either place.
The blind Pelican has an upstairs deck style bar and restaurant. Good food there, with a view.
For pizza, go to Fanny's on the Beach. (they may have changed the name but the locals will know.)
If you're into civil war stuff, Ft. Pulaski is on the way to Tybee and a great place to take pictures. (slight admission fee).
Self guided tour - takes a few hours.
River street is much smaller than Tybee but worth seeing or taking a trolley tour from. It has classier bars and restaurants.
Hotels get booked up fast around then so reserve early.
You may also want to check into renting a house for the week end if you travel with friends to share the cost.
Been there, Done that