Did I say securitywise ... almost every otherwise as well - only miss addblock & flashblock ... ah well
-tomos
Flashblock in Opera.I recommend adding the css code in the browser.css file for a permanent effect and enabling
Always load javascript opera:config#UserPrefs|AlwaysLoadUserJavaScript (paste the red text in the address bar,run and tick the box).
As for adblock the new Opera 9 has that build-in (named "Content Block"), not as flexible as the Firefox equivalent as it doesn't support regular expressions but it gets the job done.
Here are some generic rules to add to urlfilter.ini and
here are specific ad servers also for adding in urlfilter.ini.