Right my friend needs the box, a monitor and an OS for as close to £500 as possible. He plays WoW and CS:S and would like to play them on about medium settings.
Without going for a second had graphics card this is as close as I've got to meeting his request, a whole £60 over budget but he will be able to play the games on good settings.
http://img713.imageshack.us/img713/9585/jamespc.png
A 20" monitor is big enough for him but the price doesn't seem to be that different.