As there is some crossover between the UK/Ireland (and other destination) fora and this one, I thought I'd post a couple of links to existing railway FAQs from over there:
The UK & Ireland rail FAQ - read this first if you have any questions about rail travel in the UK & Ireland including:
The Eurostar FAQ - everything you'll need to know about travelling to Europe (ahem) sur le Euro-Etoile, courtesy of
UK flyer.
Hope this is of some use to readers of this excellent new forum!