Right,let me get this right.A power supply has to be able to cater for all the pedals being used with it.In my case thats 1@300ma,1@50ma and another 3 @40ma.Thats 470ma altogether.Bearing in mind that I probably wouldn't be using ALL the pedals at the same time,then a 450 Sound Labs unit would suffice(available for around £25 on the Bay)On the other hand,would something in the 1 amp range be better,in order to have some leeway.I've seen a unit which has 10 outputs,at 1 amp,but which says in the blurb that each output is rated at 100ma.See,this is where I'm confused.At 100ma per output,this would be no use for the Zoom,which needs 300ma.But then I think to myself,is it an overall figure of 1 amp,which would be more than adequate for all the pedals.You know,I'm actually starting to confuse myself now.If anyone can make sense of my inane ramblings please tell me is a 1 amp unit good for what I need?