Eurail pass vs. regular tickets.

First thing, Eurail passes do not include the Eurostar from London to France. You do get a discount on the Eurostar if you have a Eurail pass, but I don't think it is as good or better than the lowest advance purchase price. Thalys is often used for travel in France, Belgium, and the Netherlands. I requires a pass holder "reservation" fee that is more than the price you can get with direct purchase. Unless you can get discounted advance purchase tickets direct from the websites of the national rail companies or from Thalys, the prices stateside, such as from RailEurope, will undoubtedly be more.

As Lee said, for your routes point-to-point tickets will be cheaper than a railpass, especially if you book in advance and get discount fares. London-Paris: Book up to 120 days in advance at eurostar.com to get a fare as low as €42.50. Paris-Luxembourg: Book well in advance at tgv-europe.com (up to three months allowed) to get a Prem's fare as low as €25.00. Luxembourg-Brugge: You will take IC trains (Luxembourg-Brussels and Brussels-Brugge) on which there is open seating and no reservations are possible. The 2nd class fare is €36.20. No discount for advance booking. Brugge-Amsterdam: Fastest is an IC train to Antwerp and a Thalys train from there to Amsterdam. To get a discount fare, book an ABS (any Belgian station) ticket up to 90 days in advance at thalys.com which will cover your ride on an IC train to Antwerp and on a Thalys train from there to Amsterdam. Or simply take an IC train to Antwerp and another IC train to Amsterdam. It will be slower, but your tickets will be good on any train.

There is a PM for you from us. Monte

Thank you everyone for your help.