I live in Euless, so I thought Arlington would be closer for me too. I went there, but it was more like technical school where working adults were taking classes. So the lady at Arlington center (the one off ballpark way and 360) gave me 1-800 no., and was referred to Dallas center. Unfortunately, they are not offering I20 GRE, GMAT classes anymore. You all may try if Princeton Test Prep offer such I20 classes. Google up and call them up. I know they have offices in Dallas off 75 and in ft. worth off 30 and downtown area.