Hi guys, Have been following MacRumors for a while now and decided to get a refurbished / 2nd hand iMac. I do need some advice since I am not sure about the specs and it is a 2nd hand device. I'm in the Netherlands and so far no signs of refurb iMac's 27" in the online Apple store. (Haven't checked the actual store yet, though.) I did come across a 2nd hand iMac, which seems alright, except for one thing, the hardware UUID. The specs are as follows: Processor 2.7 GHz Intel Core i5 Memory 4 GB 1333 MHz DDR3 Graphics AMD Radeon HD 6770M 512 MB Serial Number ...... Software Mac OS X Lion 10.7.5 (11G63). Model Name: iMac Model Identifier: iMac12,2 Processor Name: Intel Core i5 Processor Speed: 2.7 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 4 GB Boot ROM Version: IM121.0047.B1E SMC Version (system): 1.72f5 Serial Number (system): ....... Hardware UUID: E68C80EB-7FF5-5190-A163-899D9B88DD9B I'm especially concerned about the hard disk (hardware UUID???) since it isn't mentioned what hdd it has. I have read that there are some problems with HDD drives recently. Can anyone tell me what this is about and if this applies to this iMac? Also, the guy is asking EU 1.200,-- for iMac (incl. keyboard, mouse, documentation etc) is this reasonable for an iMac purchased in April 2012? Note: I blanked out the serial numbers, if it's necessary I'll post them. Thanks in advance!