Things which still need to be booked...

Hotels/hostels
Las Vegas
Stratford-upon-Avon
Munich
Fuessen
Salzburg
Vienna
Berlin

Flights
Oakland<-> Las Vegas
Vienna -> Berlin
Berlin -> Munich

Trains
Megan and I have given up trying to make the UK train booking system work. Therefore we shall wing all once we land at Gatwick *fingers crossed* the prices don't go up by that much.

London -> Cardiff
Cardiff -> Birmingham
Birmingham -> Stratford-upon-Avon
Stratford -> Heathrow