Web project feedback wanted

[Kathy Cashel]

I'm in the planning stages of an online mapping project, and 
wondering if I have chosen the best tools for the job.

The goal is to present political campaign contributions amounts at a 
zip-code level for the state of Virginia. I will need to create 
hundreds of dynamic maps: one for every county, congressional 
district, and senate district in the state. I then need clickable zip 
code polygons colored according to how much money came from that 
area. Each of these hundreds of maps could then be drawn hundreds of 
different ways, depending on which politician you're looking at.

The organization is a nonprofit and can't afford a full-on ArcGIS web 
solution, but has a copy of ArcView 8. In fact the web site is on a 
shared server, so there is no way to install new software at the 
current web host. My plan is to use ArcView's DSMapBook extension to 
create static vector maps with landmarks (highways etc.) for each 
district, and then use WorldKit (http://worldkit.org/) or something 
similar to draw the zip code polygons on top and present the whole 
thing in Flash. Geocoded polygon data would be stored in XML files 
for each district, and presented in the Flash WorldKit wrapper. 
(Flash having the advantages of being a common plug-in, making adding 
other interactivity / animation easy, and being easily embedded into 
the current web pages.) The contributions data for the zip code 
polygons is in a SQL database, and would be displayed on the fly. The 
last hurdle is to get latitude / longitude boundaries for each 
district map out of DSMapBook, which may not be possible.

If there are other issues I haven't thought of, or better ways to do 
this, or if you think this is a good plan, it would be very helpful 
to hear about it. This is a non-commercial, non-charging project 
which will make this information freely accessible to the public; any 
help or advice you have to offer is very much appreciated.