Jalemero.
I went over to Saidia last year and have now bought on The Greens. My advice would be to take sometime to compare all the apartment developments you can rather than just focus on one. This, at least, gives you a perspective on what you are getting for your money. Also have a look around the general area, the golf courses (in various stages of development), marina, commercial area, hotels and Saidia town, to get a feel for the entire resort, and the relative position of the various developments. Its a very large resort, you will likely be surprised by the sheer scale.
In terms of flights to Oujda, there some details on the following site ->
click here
Good luck and let us know how you get on.