Seems crazily busy that weekend for some reason...
I"m in the Arora International, seems to be in the centre of Manchester, about 2 miles from the Casino. Not the cheapest (£145 I think), but looks reasonably nice, and had to pick something half decent to persuade the missus to come down with me to keep me company... Even that is sold out on most sites, I got it on LateRooms.com...