Chaser as requested: Passport ALSO: http://www.ehic.org.uk <-- you might as well fill this in while you're at it. It's free and will arrive within a couple of weeks. You'll need your national insurance number which you'll probably find on a pay slip. If you don't know your NINo your NHS number will do if you know it.
In uk.rec.motorcycles, BGN belched forth and ejected the following: Cheers, Nick. Ehic applied for. I may need reminding about the passport. I'm off 13th-21st July and I plan to get it sorted sometime between those dates.
Yes, it's definitely worth doing this a couple of weeks before you go away, rather than 3 days like I did. Sod's law that I could have done with it as well. Now EUR50 poorer.