Istanbul is a beautiful city which I will definitely visit again! It is only 2.5 hours away from where I live but it is another world you step in. I had many great moments in Istanbul: early morning on the Galata Bridge, late night strolling through the empty streets, the warm sun rays on the Bosporus tour and a visit to an original Hammam (from which I do not post any pictures as the towel bent around my waist was constantly loose). The city is definitely worth a visit!
One word about the Fuji X100: It performed fantastic. Neither did I miss a zoom lens nor did I miss the weight and size of my D300. OK to be honest it could really have a faster autofocus – especially in low light it can drive you crazy!! But what amazed me most was the dynamic range the camera offers, this is something that I had been missing with my D300 so far.