I'm baccckkk!!
OK so... I cancelled the one I ordered and went for this beauty instead:
http://www.pcworld.co.uk/gbuk/computing/desktop-pcs/desktop-pcs/lenovo-ideacentre-aio-700-23-8-touchscreen-all-in-one-pc-10138331-pdt.htmlIt's an all-in-one but it was in the same budget and the graphics card didn't seem TOO awful!
Happy to report that The Sims 4 and all expansions are running at Ultra settings with no noticeable lag (I haven't played much just visited a few busy lots to see how it performed!)
Will get some screenshots etc up. I know we said All In Ones weren't ideal, but within budget this one seemed like a steal and much better for work I'm thinking because of the integrated microphone and webcam and stuff like that.
When I got it home my second monitor looked pitiful so managed to get a nice curved monitor which is meant to be good for gaming so will give the Sims 4 a go on that too and report back!!