If anyone would like to know more about web-based / web acting preplan software, or what it may look like, I got a tip from a software rep about using web developement software for use as a pre plan tool.

We used Visio to make the floor plans, then saved them as a web page.
Next we created a website using FrontPage 2003 and tied it all together.
FrontPage 2003 is one of the programs that virtually all companies, cities, towns, etc... use to make their own websites. We chose it just for that reason, the IT department of the companies, cities, towns, etc... should already support it. Also, microsoft supports it and they have 24-7 tech support.