2X6spds,

Apologies for not responding sooner. Lost track of this thread.

Got my isolating transformer at a local electronics / electrical supply store - industrial type (ie. not Radio Shack.) Set me back just over $100Cdn. Every city's got 'em. The transformers come in many sizes. Given the low draw from most wallwarted components, my 300W (output) unit is more than enough for several devices.

Regards.

Jeff Mackwood