You would need USB inputs for that to work. Im in the same boat. Just ordered two 180gh and currently I have 2 5gh bfl miners on a pi. Just gonna keep those on the pi since these new 180gh has their own gui.
Ah, I was hoping there was a way to turn on the proxy style in cgminer like bfgminer uses. No big deal would have been nice to toss my other 74gh into one operation controller.