I would tell you go pick yourself up some Yuengling, but I don't think you can get it in Georgia (I don't remember seeing it anywhere the last time I was there).
I would suggest some of Brooklyn Brewery's beers (if you can get them), specifically the Lager, Pennant Ale '55, and Local 2.
Before you do that though, you might want to try some of the other Sam Adams since you said you liked the lager. They make some pretty good varieties, my favorites being the Cream Stout and Summer Ale.
yeungling has a brewery in florida, maybe he can find it in ga. yuenging is ok, but nothing special....unless you can find their bock. its a season, limited distribution brew, and its actually pretty damn decent.
/went to the original brewery this month
//it was neat, got some of their bock beer
some sam adams stuff is pretty good. the noble pils isnt bad, and i usually hate hoppy stuff, but the hops are nice and mellow in that.
anything by leinenkugel (well, havent had the summer shandy, but the rest is good). their 1888 bock is great, and the classic amber is as well.
killians irish red isnt bad for cheap beer. nothing special, but not bad.
fort collins also makes some good stuff, if you can find it.
magic hat has variety packs....check them out, they make some pretty good brews.
warsteiner makes a decent pilsner and dunkel, try them both, shouldnt be too hard to find.
widmer makes a tasty hefeweizen, pour it in a glass first.
widmer drifter is...really citrussy, not my thing but some people love it.
if you can find anything from shiner or brooklyn breweries, try those as well.