Thought I'd post this in case anyone wanted it.

Attached is a zip file containing my version of the Opera search.ini. It contains an OCC Forum search right under the Google search.

Just replace the search.ini found in your Opera application data folder with the one from the zip file. By default, the search.ini file should be found some place like:
x:\Documents and Settings\<USER>\Application Data\Opera\Opera 8 Beta\profile

*NOTE* The search.ini found in the X:\Opera install\ is the default search.ini file, you do not want to replace this one.

Also included in the file is the original search.ini from Opera in case anyone goofs up or forgets to back things up.

With this, you can also type occ <search terms> in the address bar. For example, typing occ Opera in the address bar would take you to this.