Hello, fellow Apache user! You may wish to look into Nginx. My Japanese toilet seat practically has enough memory on it to serve all my business needs.
One of these days I have to migrate all of my Apache-hosted Wordpress blogs to Nginx.
Yeah, nginx is my favorite web server as well. I use it for my startup, and I'm in the process of migrating all my blogs from a 1GB slice with Apache, to a 4GB server in the cloud with nginx. With that I should be ready for virtually any amount of traffic my tech site may get.
Interestingly it's not a default installation. It's an installation that, in the past, I fine-tuned with great success. That said, it has been less than satisfactory over the past few weeks.