My wife used to send me cigarettes and dip while I was over there, but she did not post it on the customs form as she was told that she could not ship tobacco products to Iraq. You can check with the post office before you leave and see if in fact that is the policy. The shipping of your personal items may be limited by the airlines, if not and your company will ship the cigars for you then that will be the way to go, they will be with you when you arrive. You will have to check with the airline you are travelling on about shipping sidearms in your checked baggage. Also, there may be restrictions on personal firearms if you are landing in Kuwait before you go to Iraq. If your employer is ok with you carrying a weapon they may know what hoops you need to jump through to take one with you. I did not know that many contractors over there, but their were some who carried firearms. I don't think KBR allowed their standard workers to carry firearms, only security personnel. It was hard to tell who was a civilian carrying a weapon as SF, private security personnel and many of the alphabet agency's personnel wore civillian clothes and carried firearms. Since I was in the military personal firearms were not allowed.
We did not have any problems buying merchandise on line, you will have give them your APO address, which your employer should be able to give you before you leave. Use of the postal system should not be a problem as it is a United States Post Office run by the military. I ordered some books from Amazon while I was there and it took about two weeks to get them. There are some companies that will not ship to an APO address, Dell computers is one. Some of our personnel ordered Dell computers and had them shipped home then their families shipped the overseas.
Use of the PX by civilians was not a problem in Tikrit, since buying on the economy is very dangerous. There is a good PX located on Balad. We used to have a lot of our people volunteer to convoy to Balad so they could go to the PX before we got one at Tikrit.
Balad Airbase was about two hours south of Camp Ironhorse on Route 1 and is located about in the middle of the Sunni triangle. It can be a very dangerouse place, especially if you have to leave the compound. Traveling on the roads will expose you to ambushes, IED (improvised explosive devices), drive by shootings and Iraqi drivers. While in the compound you can expect the occasional RPG, mortor and rocket attack. We used to have mortor Tuesday and RPG Fridays, these were there days off and I guess they used the time to set up their attacks. That is not saying that was the only time they fired on us. The temperatures during the day in the summer time will exceed 130 degrees, so if you can take a three liter Camel Back hydration system with you. They are insulated so cold water or ice can be out in them which will keep your water cool longer. There not much worse than drinking piss warm water, except not having any water at all.
I hope this helps, if you have any more questions feel free to ask. If I think of any thing else I'll post it.
Shootist