I have one here for the Novotel at the airport; £99 a night which includes being able to cancel, its £88 a night for no refund booking.
Update I have booked the room on my credit card with the cancellation available up until check-in. Let me know if you want to split the room. Ticket for i58 also booked and now linking to seat picker - If i can sit with you guys great!. I won't be arriving until the Friday though as I don't finish work until 6am Friday morning (Yay! Night shifts!!)
Looking forward to meeting you all!