re: Planning a trip to Europe(Barcelona and Amsterdam)

Since you're flying into Barcelona and out of Amsterdam, I would probably suggest going to Paris and Zurich. Two awesome cities right between Barcelona and Amsterdam, which is convenient for you to take by train (Eurorail if you're interested). You can spend 3-5 days in each city and it would work out perfectly for you lasting 2 weeks. Depending on which cities are your favorite, you can stay longer at a particular city. I think the best 2 cities of the ones I listed are Barcelona and Paris, but Zurich and Amsterdam were also very nice. Should be a great time for you.