What is the best external Touch screen Monitor?

[Raghunath Waltz]

Hi guys! Following the forums for almost a year and became a member just today ( Due to family issues). Ever since I saw the gorgeous spine-chilling ad of the Surface studio, I was wondering if there is a monitor like that. Turns out it does. But I don't know which one is the best. So if you could help me, it would really be useful. Please!!! ( and I just need a monitor, not an all in one desktop, because I already have a powerful desktop sans a good monitor)