I am a Maximum PC magazine subscribers, one of the best computer magazines and one of the few magazines still surviving as a print magazine (you can still read it online).
Every year Maximum PC have their “Dream Machine” of the year which is a custom computer that they build using the best of the best hardware, and they are expensive ($17,000 last year). So this time they presented 3 different Dream Machines at the following price ranges (2,600SR, 5,400SR and 14,000SR). The specs on these machines are pretty good, even the cheapest model. Although we know how hard it is to find AMD products in the Intel-dominated Saudi market.

As for where to buy the hardware in Saudi Arabia? Most of the standard hardware can be found at regular computer stores but if you want the high end video cards, power supplies and cases then you need to visit a store such as Softland/Binaries/Techno Roof. The other solution is to import from the United States using any of the mail forwarding services listed here.
The Western Digital TV HD Media Player is now available in Saudi Arabia. You can can buy it at Jarir “Bookstore” and it cost 449 SR. I have seen the media player in other stores in Riyadh’s Olaya computer market.

Maximum PC reviewed the TV HD media player and gave it 8/10.
The device delivers much higher video resolution than most media players, all the way from 480i using the composite video port to 1080p using HDMI (576p, 720i, 720p, and 1080i are also supported via HDMI). The WD TV supports a host of video formats, codecs, and containers, including AVI, H.264, QuickTime, VOB, and Matroska.
Update: I should have known that Jarir Bookstore links expire so fast.