>>>Rob: "We want to do postal code ==> GPS..." >>Me: "You can use google apis..."
>Rob: "Our business is GPS and GIS traffic data...." Oops yes, that's a whole nother kettle of fish then. To return to some of the older parts of the conversation, I think the SQL route is best (whichever engine is chosen) - I am sure you will need to expand in future. I hope you get the PERL latency sorted out. Best of luck! Ryan