Best Apache Configuration
My current configuration is
see this memory usage stats img.freecircuits.org/images/screenoso.png and screenshot
That's a whopping 1.73 hits per second. If it's spread over multiple timezones then it's just 0.6 hits per second.
Unless your pages are HUGE, I don't think you have to do much of anything to handle that type of traffic.
Just lower max clients, tune your mysql setup, tune your php setup and you should be fine.
If you happen to grow to 200 times that traffic, perhpas this article will help: