FrostGiant, It'll be a little hard for someone who's not from the middle east to understand Sahara, I think, harder to digest if you don't have the right "ground", if you know what I mean. El Norra Alilla is clearer.
I'll explain myslef: You know when you start talking to a person who dosen't know anything about Metal and you shoot out stuff like "the second riff had a stronger guitar sound but you can see a clear influence from the Heavy Metal genre and in the same time it's pure Death Metal, not too Thrashy and not at all Doomish". The person you'll talk too would just stand and gaze at you like you just said a bundle of gibberish. Same here (well, not the same, it's not as hard too understand as the example I gave), we know these musical instruments and some of the prayers, and we are used to hear arab and heberw, but the combination of these may 'cause two reactions:
A) Exotic appeal
B) You saying "huh?!"
And so dude, I recommend first buy ENA, and some time later buy Sahara (and then Mabool, hehe)