Here is a good link on setting up a single blade (no backplane) https://bitcointalksearch.org/topic/guide-dogies-comprehensive-asicminer-blade-setup-205369
The backplanes I have seen on the internet are around the $100 mark. I would keep that in your pocket or spend it on another blade. I just got into the blade scene myself and have had mine running for 4 days now. My setup is next to my fileserver in my laundry room. I have the cover off and a spare molex wire from the power supply running over to the blade. Some of the vendors I have seen online will give you a backplane for free with the purchase of 7 blades. So wait until you get a little further along. My tests on the power supply I have running now, will power my server and up to 4 blades. By the time I add from there, I will worry about the backplane then.
Let me know if you have any additional questions. The link above should answer most of them.
TheWoodser
Thank you very much +1