Im thinking to upgrade my new 27'' 2011 imac (cuz the price to upgrade the ram is insane, so I just upgraded the CPU and the graphic card). Now there seems just 3 brands of memories that I can choose from ? Other World, Nuram, and Samsung(which is factory original). So for 16gb (4x4gb), Other world costs me about $ 207 US, and Samsung Costs me $267 US without TAX and import duty fee. Dont know the reputation of these 2 brands for making RAMs. Is there any suggestions, feedbacks from you guys about these 2 brands ? any haters around?