We've bought a flat with one of those ghastly textured ceilings. I think it's called Artex - it's that nubbly blown cement stuff (it's probably full of asbestos or something equally bad for you, now I think of it).
This is not a flat we're going to live in forever, so I am really looking for a cheap cosmetic fix. It'll take forever and cost a fortune if we have to pay someone to chip it off by hand.