A setup with 5-15 novice users, let them use the PTK and what there doing without interfering or helping, might give you valuable information for changing some UI and scenarios.
I expect to be getting such feedback from our admin and sales folks, who will be "eating our dogfood" over the next few weeks. :)
That's good. But remember actually seeing people doing the software is much more educational (for a developer/interface designer) that just getting opinions. (ok I will stop my nagging now ;-)
We have an existing effort underway to tackle the "DTML snippet" problem for Zope in general:
http://www.zope.org//Wikis/DevSite/Projects/ZPT
In particular, ZPT makes pages back into "wholes", editable using GoLive, Dreamweaver, etc. (GoLive has better WebDAV support, and is working with the current test version; DW may take longer, as they have only broken WebDAV support, and won't commit to fixing it).
Couldn't it be done with plain FTP access or does it involve accessing DAV properties? Regards, Joahn