Hi there, Makram from Egypt,
A Doberman can be a wonderful companion. My boyfriend, Charlie, used to raise European blood Dobies years ago and he loved them.
The best advice I can give you on getting a good Doberman is to get on the internet and look up lots of breeder sites. I'd definitely look at sites in Europe. E-mail the breeders that you want to consider, and they will be very, very accomodating and happy to give you all the details on importing a puppy, how much it will cost, etc.
We have Fila Brasileiro dogs and although we aren't interested in importing any (for a variety of breed-specific reasons), this is how we are going about finding the right breeding dogs for our lines. The Fila people are largely very friendly and helpful, and I'm sure the Doberman people will be just the same.
Let us know how your search goes!