I've never tried Amazon's EC2 before. I am tempted to use it, because every time I need to calculate something, I can fire it up and instantly have a bunch of crunching power. I currently use a cheap cheap VPS, but it takes a while to calculate what I need. But it is really cheap. All my stuff I've written is on the Windows/C#/Sql Server stack. Was wondering if anyone else had stuff working on VPS and migrated to EC2. Was it easy and cost-effective? Worth it? What sucked about it? At the end of the day, would you recommend me looking and trying this stuff out?