Almost nobody uses apple computers in Egypt, and there's no official Apple store in Egypt -- except for authorized Apple retailers that look exactly like an Apple store in the United States.
In case anyone needs information on an Apple store in Cairo, here it is:
Trade Line is an authorized Apple retailer that can fix computers. The address is 35 Sharia Gemeat al-dool al-arabia in the district of al-mohandiseen. Or in Arabic, ٣٥ شراع جامعاة الدول العربية في المهندسين.
According to their business card, they are also located in Citystars (store 50) and Dandymall (store 105A).
Telephone numbers:
(202) 33 37 4041
(202) 33 36 8465
(202) 24 80 0844
In addition, there is another Apple store called Apple Line in Garden City at 75 El Kasr El Einy.
Finding these places wasn't the easiest thing, so I figured this is some good information to hide on a random site that google cannot ping.
p.s. The following is an afterthought, but I could've just spent the whole post on this topic. Bargaining extends to places as formal as an Apple authorized retailer. The price for a new hard drive, os x leopard, and the installation started at 1250 Egyptian pounds, but after a little conversation was lowered to 850 (that's a difference of $75). I didn't even know that bargaining was possible, but I just gave the standard blank look that reads "Oh, it's really that much, I guess I won't be able to afford it." And just wait for the retailer to say something.