Amazon EC2 Move On Demand instance to Reserved

Am moving a Win2003 server onto Amazon. I'd like to build it on the On Demand instance first, then if all goes well, move to a Reserved.

Question: Is there any way to move from On Demand to Reserved, or will I have to manually rebuild the machine again.

Its not an easy build and I don't want to have to do it again :-)

Solution 1:

The whole on-demand vs. reserved instance thing is really just a matter of how you're billed by Amazon. The actual EC2 instances themselves are exactly the same.

Just purchase a reserved instance in the same AZ as your server is in currently, and your billing will be automatically changed to reflect the reserved rates.