I am rather happy with opera's browser. For search, I can't say any engine that I know of really satisfies me. I have complaints about google's search engine; I always fail the captchas it sometimes gives me to check if I am a robot, most of its results are heavily skewed towards consumer products, and the auto correct tends to confuse certain chemistry and engineering terms like sulfide with sulfate or phosphors with phosphorus. Even so, google probably has the best search engine right now.