What about this? http://www.amazon.co.uk/gp/aw/d/B00GMIPO46?cache=e92f58d7dde68c979a27c32fea7db605&pi=AC_SX110_SY165&qid=1407410860&sr=8-6#ref=mp_s_a_1_6
The bigger question would be quality: a 600W Diablotek and other tier-5 brands is not going to fare anywhere as good as anything from Antec and most other well-known PSU brands that fill tiers 1-3.
What about this? http://www.amazon.co.uk/gp/aw/d/B00GMIPO46?cache=e92f58d7dde68c979a27c32fea7db605&pi=AC_SX110_SY165&qid=1407410860&sr=8-6#ref=mp_s_a_1_6