5.2. (Too) Many Options
A common complaint about deploying Mongrel is the large number of available deployment options. You can use Pound, Pen, Balance, Apache, IIS, Nginx, LightTPD, Litespeed, and probably servers we've never even heard of before. You can put Mongrel behind firewalls and hardware load balancers. It's very daunting for the beginner.
What we're going to cover is a good, solid best-practice deployment involving Apache, Mongrel, and MySQL on separate servers. You could also combine these three pieces onto one machine, but to make things interesting, let's configure three machines.