I have a few weeks to decide what to do, I might have another look at having my own website. If I do go down this route I will lose 3/4 of my trip reports on this forum and on my flcikr account
EDIT: I left this here because I wrote it and bricam2096 replied but you might as well skip it because as bricam2096 pointed out below, you can't modify posts on here after a while!
Do you know any coders? When I was working as a coder I could have knocked you up a script that would alter your trip reports on the forum, download from your flickr and save your flickr photo descriptions to your new host in an hour or so. Sadly I've not written any code in the past 8 years and don't remember any languages anymore! If you're friends with a coder though they could probably do this for you it shouldn't take very long, it's a simple script. There used to be a site called RentACoder where you could hire coders cheaply to make things like this for you (some coders in foreign countries were happy to work for a few quid an hour) but it appears they have been acquired by
these folks and I've no idea how good they are now for personal projects. You could try posting it as a job but you'd need to give your forum, flickr and new host passwords to a stranger unless you specified that they make it run on your machine as part of the project, but that could put the price up.
Having said all that, you could just keep your Flickr account and not worry about having to set up your own host! I used to be a systems administrator as well as a coder and I personally chose to use Flickr for the sake of simplicity.