Welcome to the Harry Potter fan club! Like @filmfann states, it is better to read the books before seeing the movies, or at least read a book before watching its film. Trust us…it’s a much better way to approach the series in order to get the maximum effect.
When you make the pilgrimage to England, be sure to go to The Railway Museum in York, which houses the Hogwarts Express from the movies. In London, you can visit Platform 9 & ¾ at the King’s Cross train station (I’ve been to both). There are plenty of other HP places to visit in the UK.
Have you taken the Harry Potter Sorting Hat quiz to find out which house you belong in? Have you discovered the Harry Potter Wiki page yet? It’s the ultimate resource for all information on HP.