Since I am from the uk, I am mainly buying from ebuyer.com which is sort of similar newegg. I know the 8Gb is a bit overkill but its only £10 more which is pretty reasonable. So would it be better to get 4GB 1600 mhz than 8gb 1300 mhz?
In regard to the PSU, do I need more power? Or a different brand?