I recently was looking for someone to migrate my self-hosted WordPress site, EuropeanParty.com, to one hosted by WordPress.com. The (one!) requirement was to make it look as similar to the self-hosted site as possible without incurring any WordPress.com fees.
I found on WordPress’s own site that they recommend Elto.com.
The short story is that Elto is not much better than the various (mainly) foreign freelancers that hold themselves out to be WordPress experts – in other words, they have NO idea what they are talking about. If you want the long story (i.e. the transcript) leave me a comment.
I ended up having to do it myself. Below is one screenshot of the self-hosted site and one of the Wordpress.com hosted site.