Graeme - the hits were on windows but I've been preparing to look at fail2ban for postfix installation.
diberry - this is why my brother is retaining an off-line XP on his network: he says linux does not have the quality of video editing tools he's used to. He said that just before complaining his latest video editor update had trashed a couple of functions and was getting bloated. :)
I would say gimp is as powerful as anything I've used on windows for graphics but it takes a bit of getting used to. I don't use graphics often enough nowadays to get familiar with gimp. Inkscape is also supposed to be good and apparently easier to use but I don't know about its power.
graeme - I have so far avoided anything adobe on linux (apart from !$&* flash!). There are adequate PDF editing, viewing and printing tools in linux as far as I can see, although I don't really do PDF editing. I recently found a PDF printer to add to my printers list so I can save and email html pages direct from FF (or from any other app).