At the SANE2006 system and network admin conference running from 15th of May 2006 up to Friday 19th of May 2006 in Delft, Holland (see SANE2006) CAcert Assurances as well PGP signing can be done. At Wednesday 17th of May 2006 there is from 18:30 a special (free entrance) Bazar with a CAcert booth to obtain your assurance or to assure others.
The event location is: TU Delft, Aula Congress Centre, Mekelweg 5, Delft, Holland.
Be prepared and do your preparations see CAcert web site or SANE2006 CAcert info.