I once needed a new power cable for my laptop since the plug was broken. I called one of the stores several times with no result; they couldn't sell me the missing piece because some person who was apparently in charge for selling parts was not available. Since I needed it urgently I ended up going to a mall for computer parts downtown where they fixed my cable and attached another plug to it - for a fraction of the price I would have paid for an original apple part.

I work for a company at the moment where everything is based on Apple computers, they have new models and licensed software. So if you need anything in particular I can inquire.

You will find several big computer malls in Cairo (they usually consist of many small stores under one roof) but they are completely clueless regarding everything that has to do with a Mac. However, if you invest a bit of time you will eventually find most things you need. Many additional items like mice, CD-burners, USB-drives etc are often Mac-compatible anyway.