
Time you spoke to 'The Man in Seat 61' (Google it).
I studied that site inside and out, and was a fantastic resource for getting to know the British and European systems, their timetables, and fare structures. You still end up booking through the railway companies, but this guy gives you a great head start on getting the best value.
Tips, such as evaluating the 'daily equivalent cost' of travel passes v's Advance Purchase fares... brilliant, saved heaps. Never thought of going across the North Sea to get to Amsterdam, until I'd read his Rail 'n Sea pages.
From what I've read, even if you are over 60, you still have to shell out 30 quid to get the Senior Pass... so for just a few trips, probably not worth it.
Did all my bookings using advice from this site...
Kings Cross to Keith (1st Class), got it cheaper that Standard Class by tavelling on a Sunday.
Keith-Edinburgh, paid top dollar on the day... last minute decision.
Edinburgh-York, AP, cheaper than Railpass.
York-Manchester-York, and York- London, ditto.
Boat train to Harwich,Ferry to Holland, and train to Amsterdam... saved a nights accommodation.
Thayls from Amsterdam to Lille.
TGV a few days later on to Paris, dirt cheap. Maximum fare was 220 Euro, got mine for 39 Euro.
Another TGV to Zurich.
Swiss Railways to Chur, Berninna Express (panorama supplement), and Trenitalia on to Milan... the last bit was a 'local', but it was brand new, and introduced me to the Italian ticketing system, so easy to use.
Milan-Venice, prebooked, something like 39 Euro.
Venice-Milan-La Spezia, again prebooked and just as cheap.
Even the last minute booking a few days later from La Spezia to Pisa, Florence, and Rome was not that bad.... featured a 250 km/h service into Rome.
Browsing the site is almost as exciting as the actual travel (well, not quite, but there is a sence of satisfaction and security of mind when you know what to expect).