Well, I've been debating about doing it for a while (well, plucking up courage more like) as my old web host was probably good when I first signed up with them, but doesn't appear to have updated anything since then and the site was running on old version of PHP, amongst other things. I could have moved on to another server running a more recent version of PHP, but that was still going to be a full migration, so I figured I might as well look around to see what else is on offer. The end result is I'm now with a new host, and if you're reading this, then the migration has been successful (although not painless).