Computer Stores - PC Gaming (Muscat)

Hello folks,

Hope I have some gaming enthusiasts around here, I want to buy/make a desktop computer (non-branded) and wandering where can I find computer stores in or around Muscat selling computer parts etc.

It would be further nice if someone can quote the names of the shops so can I can contact them before reaching there.

and yes, anyone has tried bring their desktop computers on airplanes? That can be my backup option in case I could not find the stuff here I am looking for!

Cheers,

Bilal