Hi Nick ...you might want to check out these websites for decent hotels as well...if you are going to Birmingham there is a travel inn (Birmingham Bridge Street) quite close to the Symphony Hall...
http://www.necgroup.co.uk/visitor/wh...hatsOn.asp?m=6 I use it every time I attend the British Open Brass Band Championships in September.
http://www.travelinn.co.uk/TI/ http://www.ibishotel.com/ibis/index.html http://www.travelodge.co.uk/index.php
Have a safe journey and I hope you enjoy your stay.
Birmingham is a great city with plenty of friendly people...very cosmopolitan...great Indian Restaurants (curries) and the Symphony Hall is superb.