I'll be running two 741s on the circuit. At 240v I estimate they should pull about 5A apiece? I don't have any plans to expand beyond this at the moment, but I guess it's not out of the question and it probably wouldn't cost a whole lot more at this point to assume I will expand (as opposed to the cost and labor replacing down the road).  I am considering the PDU route I've seen mentioned elsewhere. I am just not sure it's worth the expense?