Alphachi,
I understand exactly how you feel... When I first moved to Atlanta, it was tough meeting people. The first thing I did was contact my local DZ alumnae group. It's great that you're looking into your GLO's alum chapters in the area -- very good move!
My group meets once a month, so I always had that to look forward to.
Another thing that I did was get involved in a co-ed softball team -- every county around here seems to have an intramurals department where you can go sign up for various sports teams. That worked out great, too. I met my boyfriend from that team, plus I now have 2 really good girl friends who live close by!
As for the gym, I just joined one last month and I really enjoy it. However, I haven't really met anyone that I would care to hang out with outside the gym itself. Mostly just small-talk buddies for the most part. But, at least I can say hello to someone as soon as I walk in instead of feeling like I'm around a bunch of complete strangers every night!
Good luck! If I think of any other good "meeting places", I'll let you know!