http://uk.pcpartpicker.com/part/xfx-power-supply-p1550sxxb9
this one is inside your budget. It is a very high quality XFX PSU. The only potential downfall for this PSU is that it's not haswell certified. Is your system haswell? Even if it is, it is very easily fixed. You simply have to disable c6 / c7 sleep states in the BIOS. Very easy to do.
If you don't want to deal with that, but MUST stay inside your given budget, then look at this one
http://uk.pcpartpicker.com/part/antec-power-supply-tp550c