I'm travelling with my girlfriend in late February for three days to London (Thursday-Sunday). I've only been there once years ago, so my knowledge about the city is limited. However, I really want to find a place relatively close to Oxford Street, Hyde Park, Victoria etc. I was hoping to find a cosy, hopefully somewhat romantic place, with good proximitiy to the good parts of London. Any ideas? My budget for the hotel is somewhat flexible, though I'd rather not spend much more than 300-320 pounds for the three nights (hotel only). Is this a hopeless achievement? Any ideas are greatly appreciated!