Good luck, Nightcrawler, Qatar is pretty laid back, Doha has plenty of expat Brits and Irish sailors, oil company Dutch, Germans, and Americans, and even some very cool Aussies (check the downtown area). Dubai, UAE is great if you get the chance to go, and Bahrain is even pretty cool (I recommend the 13th floor lounge of the Best Western, and yes, there is a Best Western, and yes, it has a 13th floor).
Contrary to popular belief, most Arabs (even Saudis) could give a damn if you're American, but there are plenty of Iranians, Iraqis, Syrians, and Al Q's that want you dead, so watch your back.
Most laptop computers use an A/C adapter that is universal, so the companies don't have to manufacture a U.S. and a European version. The Dell that I'm typing on can (and has) handled 100-240 volts. UAE and Kuwait have the big three prong Euro plugs, and I think Qatar has the same. You can get the adapter at the airport (your transformer WILL get hotter on 240v). DO NOT PLUG YOUR MODEM CABLE INTO A HOTEL PLUG WITHOUT LOOKING! The hotels there have phone plugs (RJ-11) and ISDN plugs (also RJ-11), which supply a constant voltage sufficient to slag your puny American modem.
If you write a "I'm really poor/high speed-low drag/going to defend my country" letter to Dell, Gateway, or Tadpole (if you're into high speed Solaris UNIX laptops) they are likely to "lend" you a laptop for "evaluation". Same goes for Surefire, Buck, and Leatherman, last I heard. Surefire and Dell at least have no expectation of getting their **** back.
Just from my experience (especially the modem thing!) and hope you have a good tour!