hi, cris.
well, it's a huge trip that you´re planning! all those places that you mentioned are very far away from each other, but, good luck! i'm here to help.
you can feel free to acess me on my email to ask me some more specific stuff: dacarulina@gmail.com
here in rio, i can tell you about some hostels and nice things to do and places to visit, but first, i'd like to know what are your interests, witch kind of things you like and stuff like that.
about transport, i may be wrong, but, as far as im concerned, it's sheeper to by plane tickets in europe than here in brasil.
feel free to ask me anything you want to know.
nice to meet you too,
ana
p.s. im going to paris next week, and than, london. it would be nice if we exchange some tips.
oh, sorry about my english. i'm not quite used to put it in practice. =)