3D Flash Introduction

My personal requirements are as follows: A 3D Introduction: Stage one: Camera view is flying through a city, detailed with cars, trees, people, etc. Stage two: Camera view arrives at the front of an office block, directly opposite doors, which shows our company logo. Stage three: Doors open and camera view flys through into an office with people working at desks, busy, office chatter etc and ends up at a desk looking at computer screen with our company logo and a loading screen. Stage four: Animation forwards to our HTML website. Please reply with a ROUGH QUOTE, and also examples of such previous work relevant to this project. Thank you