I purchased a corioliss because it was cheaper than a ghd. It has ajustable heat and solid ceramic tourmaline plates.
I'd still like a ghd as everyone I know who has them loves them but without the ghd price!
All flat irons will damage your hair though, I read something online a few weeks back about 3rd generation hair straightners which reduce damage.This would be great if they exist. Couldn't find much on them though when I looked them up.