Thanks for your replies guys I haven't got a monitor , I was leaning towards the Lenovo but I guess like you said theres not a lot to choose between them.
I did see this one that has the I 3 processor and can go up to 8 gig of ram for 20 pounds more , they don't have an optical drive but they said they can fit on some models I can get the monitors and peripherals cheap enough the main thing I am focusing on is getting the best tower I can for my money. So would this be worth the extra money as opposed to a core 2 duo cpu ? . If they cant fit an optical drive I have seen external rwdvd for 20 pounds do they work ok ? I would only choose this one if I am getting something that would be a noticeable difference in day to day usage rather than getting the core 2 duo type models.
here's the link to the intel core i3 2100 below
These look like good deals below for dell core 2 duo they said on phone has dvd and would be xtra ten pounds for rwdvd.
I don't think I would get any cheaper for core 2 duo only down side is its only 4 gig ram and miniumum 2ghz processing speed would be around 90 pounds all in with dvd rewriter if theres not much difference than the intelcore i3 2100 I may as well get this deal for the money.
Thanks for any advice mark