I have an Asus A7M266 with a Retail Athlon 1.4GHz and 512 MB of Crucial 2100 DDR RAM. Also in the system is a Sound Blaster Live, ATI Radeon LE 32MB, 3COM Win 56K Modem, and a cheap Linksys NIC. I run W2K Professional SP2 as my OS. This computer has been up and running for about three months and I have not had to reboot (except when installing something) or had any other major lockups. This system is more stable than my Dell PIII 500. I was very leery about putting together an AMD based system, but so far I am beyond pleased.