Tufte's ideas are good for presenting simple information. He gets many things right (eg if the visualisation doesn't work in black and white, adding colour won't fix it). However, many in the infovis community are outright sceptical, if not dismissive of his ideas for analysing high dimensional datasets.

Where his ideas really work is once you have "the answer" that you want to present to someone else. However, the basic exploration of the data to find interesting keypoints, is not what he specialises in. There's whole communities devoted to techniques for datamining and presentation, principly infovis/Visual Analytics.

The infovis community has been dealing with these subjects for years. There's many different visualisation techniques around. Here's a list of the past conferences and the papers:

http://conferences.computer.org/Infovis/

Plenty of good products out there, but the one that I like most is from Tableau Software (http://www.tableausoftware.com/).

The one thing that my friends and I still talk about was the SWG crafting system. It's been the best of the lot. The whole concepts of materials having inconsistent quality and that the quality could allow you to produce good and bad lots of the same item, or optimise for one attribute over another really set them apart from anything before or after. It was the sort of thing that made a crafter playable as a long term character because there was so much variety and constantly having to stay on top of things, compared to the grind of combat characters.