Re: Power Supplys
I have a Donner DP-2 and a Vitoos PS1. Very similar supplies, not isolated, very cost-orientated, both have 10 outputs of varying currents and voltages. I think its just a fancy daisy chain really. Through my rig I get no noise or hum though, and everything works fine (I use 8 pedals, 2 are high current drawing). Got them both for like £15 (~$20 I think).
Although I have heard of people who have had problems with these type of power supplies. Could be worth a try.. quite cheap anyways!