Have to say that in my experience, the jobs that me and my colleagues do are paid at least 40% less than comparable jobs in the private sector. We've had some issues with recruiting, until now that is as the economic downturn has made the public sector more attractive.
Depends entirely upon what career you choose. Doesn't take away the fact that traditionally the pension was a key draw to public service and the government of the day is going to have one nasty shock if the scheme is completely reformed.
Although I have to say that many departments have reformed their pensions and ended the final salary scheme up to a decade ago. It's the old, not-so old hands mid-career, retired military who join the civil service and those just below SCS that are going to be the problem areas.