I don't want to start a flash vs css argument but I think the site is great and didn't need the two versions. I think the HTML version is fine on it's own. People say to stay clear of red and black but I think it's fine on your site. The only think I noticed was...
Don't know if it views like this for anyone else.
I think it's a good site, I really like the illustration on the home page, although Redboat Design and you had a red train.
I would like to hear other peoples views but if you are thinking of trying a different style I don't think it all needs to be Flash, maybe just some of the portfolio menus can be created in Flash but the design works as CSS/HTML.
Nice work mate.