I am using a 3Com (Broadcom) 3C996B-T without issues on an Athlon and it was surpringly affordable for a 32/64 bit, 33/66/100/133 MHz card (http://www.3com.com/products/en_US/detail.jsp?tab=prodspec&sku=3C996B-T&pathtype=purchase).
/Allan -- Allan Wind P.O. Box 2022 Woburn, MA 01888-0022 USA
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