Hi Jim, From what I've seen the basic difference is that Ult Dev has ways of generating SQL (without you having to know how) so you can query/add to a data base from your web page. I've been told that the extra cost isn't necessarily worth it if you know some SQL and a scripting language. Macromedia often has free trial downloads, not sure if they offer one for Ult Dev, but their site would certainly have lots of info: www.macromedia.com Hope this helps, Pauline
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Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop