you know what would be cool..

[Jigman]

I did something along these lines a few years back for a couple of lakes I fish regularily. Used ArcView, a GIS program. Set up the database with all the variables that I wanted to record and updated after every trip. Had it linked up to maps of the lake. I could run a quick query to obtain some basic data on locations to check out, depth to be fishing, methods, etc prior to a trip to give me at least some starting locations. The better your data, the better the output. You could also write a program to do this associated with a database. Though as bassturbed noted, you need a good deal of quality data before it would really be of any use. By the time you have that kind of data, you pretty much know when to be at your spots anyway.

Jigman