Dear Chambergalz,
1) You can borrow Travel Guide books from Library for all the must visit places. There are too many to choose from.
2)I mostly book through
www.asiarooms.com website for hotel stay. Another good place to read on whether hotel is good or bad is Tripadvisor.com
Do some search on yahoo web. You want your hotel to be in convenient location.
3) In Paris, there is CDGVAL shuttle service to take you from terminal 1 to Terminal 2 (If I remember correctly, TGV train is located at T2) You can use it to go into city.
Same for zurich, they have a train that connects directly to main town.
4) LV buy from France and Gucci buy from Italy.
For traveling to countries as u mention, you can choose Eurail Selectpass and if I am not wrong, it does not cover London. As follows for 1 pax:
5 days within 2 months - Eur298
6 days within 2 months - Eur327
8 days within 2 months - Eur382
10 days within 2 months - Eur436
From Paris to Nice by train takes about 6 hour plus
From Zurich to Paris is far but if from Geneva to Paris is only 4 hours.
The rest of the journey I am not too sure. One good website that I always use for ref though it is German Train but they have everything.
http://www.bahn.de/international/view/en/index.shtml