I have looked at Jeff Hunter’s complete install guide for Oracle RAC on home PCs in the past.
Whilst I could go and spend the money I thought I would give Amazon EC2 a whirl given I signed up to the beta. I had signed up back in 2006, however only found out at the start of 2007 that you needed to sign up for Amazon s3 (storage). As soon as I did that I was accepted to the beta.
Given each Amazon EC2 image is running virtual image based on Xen it should be fun.
Stay tuned for the install fun.