I use MSN search for my homepage by default, both the search engine on IE and my homepage
You can also change the search engine on Object Dock if you would like to know, there is Yahoo, MSN, Google and you can choose your own like Dog Pile or something like that
I have serious samurize too, just haven't gotten the time to play with the config tool Is there any way that you can get preset samurize toolbars by the way ... always been wondering