> I've always suspected that the Radeon's design was influenced by the people
> and technology that was brought into ATI by the buy out of ArtX.

The R100 was released in spring 2000 [1], i.e. between late March and late June. ArtX was purchased by ATI in February 2000 [2]. Very brief time frame.

Furthermore:

"ArtX paved the way for the development of ATI's R300 graphics processor (Radeon 9700) released in 2002 which formed the basis of ATI's consumer and professional products for three years afterward." [2]

"The Flipper team went on to have a major hand in development of the Radeon 9700." [3]

[1] http://en.wikipedia.org/wiki/Radeon_R100#R100
[2] http://en.wikipedia.org/wiki/ArtX
[3] http://en.wikipedia.org/wiki/ATI#Console_graphics_products

So it seems R100 and R200 were developed without ArtX technology's influence.