In reply to denis b:
I also have a the Langmuir book but another heavier tome is Mountaineering the Freedom of the Hills published by the Mountaineers. It's american based (i.e. pictures of weather maps etc) but very good. Oh and get used to interchanging abseil for rappell!
see www.mountaineersbooks.org
In the states it's $26.95 but not sure if it's as cheap in the UK.
If this is as cheap as Langmuir, then I'd opt for this one.