the SatANTOUT is the loop out, you can connect another receiver from this. only thing is that you can watch channels on the same polarity with that of the other STB. if you change polarity on either receiver, you will lose the signals on either one or both of the stb.
as for the receivers here in kuwait, nothing much. get a humax5400z or samsung dsr9500. most of the receivers available nowadays in hawally are new and i have not tested their support. most of the dealers here in kuwait, like NHE and RTG are selling receivers then stop support after a few months, so you will buy their NEW MODEL, lol. i got myself yet another metabox3. proven support, kinda stable and for 22kd (2 ci 1 CAM) it's already a bargain.
other STB that i know of having regular software patches (not just here in kuwait) are Samson, euroline DS555 and vivax. there are topfield, dreamboxes available but the price is almost double than what you can find from online stores.