StarCluster with Scientific Linux 6
UPDATE: Please try the updated SL6 image ami-d60185bf to fix SSH key issues.
If you haven't heard of StarCluster from MIT, it is a toolkit for launching clusters of virtual compute nodes within the Amazon Elastic Compute Cloud (EC2). StarCluster provides a simple way to utilize the cloud for research, scientific, high-performance and high-throughput computing.
StarCluster defaults to using Ubuntu Linux (deb) images for its base, but I have prepared a Scientific Linux (rpm) image. Most of the research computing clusters I administrate are composed of Red Hat Enterprise, CentOS, or Scientific Linux, so I was eager to have a compatible cloud option built off of my currently favorite Linux flavor.
You can get started trying out StarCluster with the AWS Free Usage Tier. Once you have an Amazon account, StarCluster is easy to install with virtualenv and pip in your home directory.