Hello. So I have been looking around at refurb iMacs, and I found a 2011 iMac with the 3.1Ghz i5 and the 6970M Graphics for $1200 on Mac of All Trades. Is that place reliable? I can upgrade the ram to 12Gb for pretty cheap. Or should I just get a 2012 Refurb iMac 27" Base model? It's obviously going to be weaker, and about $100 more expensive. I really like the 2011 iMac because I can upgrade the ram and Hard drive really easily, while the 2012 looks to be very hard to replace the hard drive. I'm planning on putting a 128Gb SSD in the iMac 27" later to make a Fusion Drive. Is Mac of All Trades reliable?