We have been gradually moving large amount of our managed and internal services to AWS. EC2/RDS make for a very compelling model. As a software/consultancy house using these services let us concentrate on our core competencies. The benefit of no longer sitting waiting for hardware to fail and ruin someones weekend is hard to beat.
For those wanting to dip a toe in the water, Amazon now support S3 as a static website. i.e. you can link an S3 "bucket" to being a static website. Announcement blog post is here - it boils down to uploading the content to S3 and then pointing a CNAME at it.
You can then simply use a tool like Cyberduck to allow your creatives to upload the content.