I'd go with the more expensive PSU, that's keeping the whole thing going. I wouldn't pay £600+ for a gfx card unless your main interest is in impressing other people, that's crazy money for something that will be outdated in a year.
Thanks, I think your right. I just don't know what the cheaper option but capable option is, too many components for my brain to handle. I just want the most capable pc for £1550 so keep the lists coming please for me to compare. Thanks
