I've been reading the mining hardware thread for a couple of hours. Not much talk about the butterflylabs singles but more about the X6500 boards. I cannot find someone that has expereicne with both or would suggest one is better then the other. There are very nice pictures of many rigs out there...makes me want to jump right in, but I'm waiting to get more info. I've also been in touch with the makers of the X6500 boards and is willing to hold 2 of them for me, but refused right now since I want to learn more about the Butterflylabs Single.