there is now a good kb article showing some quick notes/tips on considerations when using frontpage 2003 to edit sharepoint 2003 sites.
in particular, if you want to disable frontpage editing, check out the section “How to prevent users from opening a sharepoint Portal Server 2003 site in FrontPage 2003” in the article.
here's the article: KB831612
if you haven't seen kbalertz.com yet, you are missing out. especially if you consume rss feeds (and if using sharepoint, hopefully with feedreader), this is a must have feed for administrators/it folks/developers who want to stay up-to-date on their microsoft knowledge base articles for their technologies.
kbalertz.com provides rss feeds for your technologies of choice...check them out...
the msde deployment toolkit is available at microsoft's download site...this will come in handy when you need to deploy your app that is based on an msde environment...