1000 Mile Bike Ride

I'm planning on doing a 1000 mile bike ride in September. The company i work for has offices across Europe so the plan is to start in germany and cycle through amsterdam, brussels, paris, london to Norwich.

The idea is to do it over 2 weeks and average 80 miles for a street children charity. The training will be harsh, i'm going to start cycling to work which is a 45 mile round trip...

Saying all that, I need to get a bike first...