I am interested in buying a new personal computer. My first thought was the iMac 27" of 2012 with 3.2GHz, 1TB, Geforce gt 675m with 1GB, 12gb ram which will cost 2000 (2300USD) euro. On the other hand, i can't stop thinking that with the same money a can build a pc much better, that will also be upgratable in the future, with a great LED monitor. Please help.