1st was CO DO II in Houston Jan., 2006, hosted by Continental.
2nd was ELP I in EL Paso Feb., 2006.
3rd was the same Ljubljana DO attended by Pat with a bunch of numbers in Sept. 2006.
Cities where we've attended DOs and/or met up w/ other FlyerTalkers that we originally met at DOs:
Houston, TX; El Paso, TX; Chicago, IL; Ft. Lauderdale, FL; Honolulu, HI; Plant City, FL; Atlanta, GA; Palm Beach, FL; New York City, NY
Ljubljana, Slovenia; Frankfurt, Germany; Zurich, Switzerland; Hobart, TAS, Oz; Melbourne, VIC, Oz; Munich, Germany; Salzburg, Austria
The Prague DO is appealing except that we were there recently. If you're interested in Prague & the timing is right, don't hesitate!