I was always was fond of Borland products. Quatro theres a blast from the past!
I only once did a small data mining project (once (how often did price come withing xx ticks of the floor trader pivot on a daily basis). I used Excel. Where xx was equal to 4 I believe it was 68% of the time for those interested.
It is an area I would like to learn more about ( as are a few others if a previous thread is anything to go by).
http://www.traderslaboratory.com/for...tion-1966.html
I'd certainly be interested in what you are doing and more importantly how you actually go about the process.
Cheers