Good luck with that... Let us know how it works out for you a month or two after you switch your entire site to Flash. If you don't care about your site ranking well in the organic SERPs then write it in Flash. PR means nothing almost to how you rank for a particular keyword. Your URL can be a PR10 URL and not rank for a single valuable keyword. So what good is PR? It's practically worthless unless you're selling links. I'd much rather have a PR0 page that ranks on page 1 for a keyword phrase that brings traffic that converts.