Don't want to get into the discussion above, but wanted to let everyone going to Siem Reap know that I was there a couple of months ago and had an amazing young man as a tour guide, whom was recommended by another friend of mine. He was very energetic and always willing to accommodate our requests. He is a photo enthusiast so he took us lots of pics with his professional camera (a plus for those who love pictures).

Anyways, I'm by no means affiliated to him nor trying to get money out of it but share the good experience we had with him during our temple tours there and hopefully help him get more customers. He's officially certified by the city of Siem Reap and provides transportation (car, not tuk tuk). You can contact him here, or feel free to PM me.