Private website

I want to build a state of the art animated website which contains personal information such as messages, photos, videoclips, blogs etc....the information will be updated on a regular basis (every 2-3 months). The website should only be accessible via password. Creativity and animation, navigation is important. I have build a basic website with iWeb but would like to take it to the next level. Please specify one-off and ongoing costs. Assume, everything has to be build from scratch. London-based designer preferred