At this point - anywhere you can get into! There are a huge number of workers involved with the event who fill up pretty much all the local hotels; not to mention all those who stay over to do both days as we do. I know from experience we have to book our preferred place (The premier inn closest) months in advance or it fills up. We were booked in back in August and I think we got the last family room. You might be down to ringing around to see who has space I'm afraid. The good news is that as it is relatively close to Coventry airport there are quite a few airport style hotels about.
Thanks everyone just booked a premier inn for the sat night, so all sorted saves driving there and back to chester over the 2 days.
Looking forward to going again this year.