[wellpast]

Any estimate on EC2 costs using this moderately?

[staticsafe]

That would depend on your traffic levels and which instance type you want to use.

This should help figure things out: http://calculator.s3.amazonaws.com/index.html

[chrisper]

You would be better of putting it on a Digital Ocean and then create / destroy a droplet when you need it. It is what I do and my cost is like $1.50 per month (as opposed to $5).

[then00b]

I second the idea of using Digital Ocean, though I just pay the $5 a month and leave it running.