I just picked up tickets in CAI for a fellow FT'er and myself. He figured out the taxes on his ticket and they came within EGP100 of what BA charged. I have yet to do mine but I expect they will also come out close to the BA charge. Taxes should be fairly consistent regardless of where you ticket. Egypt does impose a tax on issuance but it is only a few hundred Egyptian pounds.

BTW, the taxes were not itemized on either ticket.