Dear Ed/Sam,
 
Of late I have written some articles about AoE HA SAN and made some kernel patches against AoE initiator. You can find it at following url and give me some coments. Its a small contribution to AoE group from myside to make AoE popular across the globe/internet.
 
http://www.howtoforge.com/low-cost-san
 
http://www.howtoforge.com/how-to-build-a-low-cost-san
 
Comments are heartly welcome to make it more useful for end users.
 
 
Best regards,
Krishna