Having only just completed my PPL and I agree that there is some good advice on here, especially about Amsterdam!
On a similar note to getting your medical early, i would also say that it is worth having a flight or two before spending too much more as it doesn't turn out to be everyone's cup of tea. I am sure that you will be fine and will love it, but I must say that after my first flight and just about 'stomaching' it, I did wonder whether I would be able to hack it!!
Regarding knee boards, I tried both knee and lap and found it much easier to use a lap board. But like everything, its personal preference and you will soon find what suits you best in the cramped cockpit! Finally, you can always use AVGAS to clean your laminate / map etc and it removes the fear of having to walk into a shop and ask for nail polish remover!!
Good luck for Feb!!