DNS (Domain name service or does not say?)

Well. It seems my website and I have dropped off the face of the earth today, in that my domain's DNS isnt available and so, no spam (whoohoo!!, I seem to get anything upto 200 attempts to mail me spam a minute) no website (boo), no real emails (major downer)..

Everything our end seems to work, but, it seems some firewall or something is in the way.

Heres to hoping tomorrow brings a bit more normality.