Thanks for the advice. I think I'm going to try to cancel the order by contacting the seller before it ships (hope Green Sum will allow me to do this- it says I can return within 14 days anyway) and just get a different monitor. Once I have money I might buy a nicer monitor to go with a nice video card.
You can get a cheap graphics card for like £20 that has dual link dvi and is completely silent (no fans). Totally worth it imho.