The VM sandboxing is especially interesting: The Real Blogger Status: Your Browser, In Anonymity And Safety - Browser Isolation.
You have to be sure your VM is really isolated though. Many OS X VMs provide VM clients access to the OS X file system. That's normally a feature, but it's a big issue if the VM goes rogue.
The furthest I go today is using FF with NoScript, or using Chrome. Mostly I just use plain FF and don't wander far from bright lights and the jostling crowd.