I finally put together a load balancing setup together this weekend, and I'm surprised it was this easy.
What you'll need is three servers, two web servers and one server for the load balancer. It's not recommended that you only use one load balancer since it's a single point of failure (SPOF) but I only had one extra server on hand. For this tutorial, I used Debian Lenny.
First thing's first, download and install pound on your load balancer.