Accounting software for large charities

Ok, so we have a thread for medium sized charities software recommendations, I was wondering what charity software large charities have been using, with income over say £3m that need to use costs centres for different branches and record restricted funds.

I audit a number of charities from small to large and am asked advice on a fairly regular basis which software and database products they should be looking at and although there are a few packages that are ok for the small to medium sized charities to be truthful I have never found a package that I would recommend for the larger charity.

What packages are other large charities using?  Any recommendations greatly received.