Will these parts be good for a gaming pc?

animal

Distinguished
according to here:

http://www.realhardtechx.com/index_archivos/Page362.htm

you will need about a 575W PSU for your system without taking into account any overclocking. I would recommend adding 50-100W to their recommendation, so probably a quality 650W unit like this might be better:

http://uk.pcpartpicker.com/part/xfx-power-supply-p1650snlb9

or this:

http://uk.pcpartpicker.com/part/xfx-power-supply-p1650xxxb9

also, you might want to consider getting a case that has USB 3.0 front panel ports. Do you already have an OS?