Yea we run ESX in house and have replaced about 50 1u servers with 4 4u horses that with vmotion allows us better failover and heartbeat times..
How has that VMotion stuff worked for you? I saw a demo of a migration of a fully operational database server from one machine to another. It was one of the most impressive tech demos I've ever seen. It takes a lot to make me go "wow", and that did it. I'm interested in how well it actually works in the real world.