Question Author
Just to update all you wonderful people who bothered themselves to give advice,first thank you!
We ended up going over budget and out our pc on hold.BTW I don't need snide remarks,Hans.There is a huge difference between putting parts together,the desktop,or trying to get into small computer parts and diagnose what is wrong.My confidence is insulted.This desktop has been a good learning curve for me and Hubby,we got a tower,motherboard and and reader from nearby shop that was closing and sold them off for about £175.We never needed a monitor cos he will use his TV,the processor was a steal,an i5 intel (sorry the numbers escape me)that is 2.7Ghz from online CEX for an amazing £75.Ram from Amazon,8GB for £31!!!then there where little things,like a fan,card reader etc.I think the whole lot came to about £300.But then hubby went mad and bought a graphics card for £65.
We alreadyhad a copy of Windows 7 upgrade from Vista,that was the hardest part,getting windows 7 on the PC with the 64 bit thing not the 32.Oh yeah,a odd Hard drive,I think it was 450Gb and that was also a bargain at £43.
So again,thank you for your time and effort in the replies,you all (apart from Hans)had good advice,I think I got very lucky with a few bargains.
Thank you from us all!!!!