K, in april i'm thinking of going to visist friends who are moving there this month, They are staying in edinburgh scottland so my first question is, if i were to fly to london, how long and how much $ would it be to get me to where they are staying, perferably by train. Also, if i were to go to london, is it possible to get to amsterdam directly from london via boat? also how much would i be looking at to do this?