Hi, Have a quick question. I'm considering buying an Imac from a reputable Apple imac reseller on Ebay that manually upgrade the hd's to either 2tb or an ssd drive on the imac 27. Will apple not honor the warranty and void it if they see the hd were not upgraded by them should the warranty ever have to be used? Also, if the imac ever needs to be replaced by apple, do I lose the hd for a stock imac model with only 1tb hd? Hope that makes sense. Thanks in advance for the replies.