Generally you should avoid to make flash based websites because of several reasons:
1. Very unsecure for users
2. Hard to get Seo properly (almost zero tolerance for SEF). You should make all the pages, which exist in flash, in html (& keywords & meta) and than to tell Search engines to follow those html pages while the users don't know about html pages...
3. Your possible customers can be "warned" by their browsers to install flash etc etc
For CD presentation yes, but for the website, nice but no.