Computer for about £700

[jor000]

I'm currently looking to upgrade my current PC and have around a £700 budget. Im after a dual core, either AMD or Pentium with a good speed and 2GB ram. Also, a motherboard with 2 video cards...neither need to be brilliant, mainly just for watching films/video editing/surfing the internet and a bit of gaming. I have all the drives so thats not included in my budget. I am also not overly interested in overclocking so i would use the computer as it is. Basically im after a future proof computer to keep me going for another few years. Any help would be appreciated. Thanks, Jordan