Curious about what a party database looks like? My colleague Tonda MacCharles has written a very useful primer about the Conservatives' system.
If you click on this link here Download CIMS you can see a PowerPoint presentation someone sent me a while back. I'm told it's an antique version of CIMS -- that the current system is far snazzier. But it'll give you an idea of how it works.
And by the way, the Liberals and the NDP have impressive, similar machinery too, though I hear they lack the scope and data of what the Conservatives have accumulated. Happy to post more information on their systems too, if anyone has it in web-postable state.