I brougth one at work, but with 256Mb DDR memory. I tested it with Win98SE, no issues, so I update to Win XP Pro, no issues yet, been 2 months. I was very relunctand in buying a ALI chipset mobo, but I get it cheap, for an ASUS.
The mobo is fast, you can't feel a real diference with my A7V266-E, both have 1.2"B" t-birds, but mine is at 9.5*140Mhz bus = 1330Mhz. I never try to overclock the A7A266 becouse its ussed for work, and we just need reliability, but ASUS ensures a 25% overclocking posibility.
One thing that I can mention is an issue with a ZIP 250 USB. When I plug it on the A7A266 it works ok, but when I put it in the server (SOYO Dragon, another 1.2B t-bird), it refused to power the thing up. So I guess you made and excelent buy, congrats.!.