Don,
I looked at the within method. It's exactly the type of thing I would need. However, I haven't been able to figure out how to get an object with that method from a shape file. As a side note, the coordinates are now in an MS SQL database. I don't know if it would be faster or better to put them in another GIS style format such as a shapefile or such. We currently have 3.2 million coordinates with about 10-50k being made per day.
Michael,
If I am reading this correctly you are suggesting I create a shapefile with just the points (3.2M of them). Then put them into a table inside the shapefile. At this point I'm rather lost since I don't know which objects I would or could use. I'm very lost as to how to break down a shapefile into it's geometry for example. Would anyone be so kind as to write a quick example, pseudo code, or just the list of objects I should be looking in to?
Thanks for all the help so far.