Yes, I'm lucky, I have free power, I "could" run as many cubes as the house circuits could handle (240v ac)
Been wondering if I could run an Antminer and a cube on a corsair GS 800 psu.
Undoubtedly, so long as the Ant is NOT overclocked. I had a Cube and an 1/2 my first Ant powered from an E-Power 450CD PSU, the other Ant blade was powered from my scrypt rig. I now have 2x S1 units on a single Corsair CS750M PSU and with undervolting, I could possibly double that, which I will be doing when the difficulty changes again.