I have a amd fx 6200 and am looking to add a water block can anyone sugest one

[Reastar]

my cpu runs between 58-63c when I am gaming and it worries me a little so wanted to add a water block to keep it cooler

 

[Hjgrove]

Those temperatures are fine as they are, but if you would like to add Liquid cooling then go for the corsair H100i ( http://www.amazon.co.uk/Corsair-Series-All-In-One-Digital-Performance/dp/B009ZN2NH6/ref=sr_1_1?s=computers&ie=UTF8&qid=1399393379&sr=1-1 ) or the Corsair H80i ( http://www.amazon.co.uk/Corsair-Series-Digital-Performance-All-In-One/dp/B009ZN03AA/ref=sr_1_3?s=computers&ie=UTF8&qid=1399393379&sr=1-3&keywords=h100 ) The Corsair H80i is probably the best option for you as its got very good efficiency and is very compact.
Hope this helps!

 

[sora]

my cpu runs between 58-63c when I am gaming and it worries me a little so wanted to add a water block to keep it cooler

That seems like an okay temperature.