What kind of EC2 AMI do you want?

It’s been about a year since we built a custom Amazon EC2 machine image for the purpose of having a readily available slice with the typical Rails goodies and gems. We’re currently refreshing that image and within a few weeks, we’ll have four new ones: 32-bit and 64-bit versions of Fedora and Ubuntu Linux flavors. Another big addition will be the inclusion of Ruby Enterprise Edition and Phusion Passenger, which have been huge favorites around here (all new client applications tend to be hosted on that config).

Gem-wise, besides Rails and its dependencies, we’re thinking about popular Amazon interfaces (aws-s3, SQS), testing frameworks (Mocha, RSpec, Shoulda), and standard fare such as capistrano, eventmachine, hpricot, libxml (and xml-simple), memcache-client, rack, rmagick, will_paginate, and all of their dependencies.

We’d like to solicit your feedback for other things you’d like to see pre-installed. Should we include Nginx and Mongrel for broader utility? Any other gems you use throughout your projects?